Nissan Ariya: Dtc/circuit Diagnosis

• B14e0-02 Wheel Sensor
• B14e0-09 Wheel Sensor
• B14e0-38 Wheel Sensor
• B14e0-4a Wheel Sensor
• B14e1-09 Wheel Sensor
• B14e1-38 Wheel Sensor
• B14e1-4a Wheel Sensor
• B14e1-64 Wheel Sensor
• B14e2-02 Wheel Sensor
• B14e2-09 Wheel Sensor
• B14e2-11 Wheel Sensor
• B14e2-12 Wheel Sensor
• B14e2-13 Wheel Sensor
• B14e2-1c Wheel Sensor
• B14e2-38 Wheel Sensor
• B14e2-4a Wheel Sensor
• B14e2-64 Wheel Sensor
• B14e3-02 Wheel Sensor
• B14e3-09 Wheel Sensor
• B14e3-11 Wheel Sensor
• B14e3-12 Wheel Sensor
• B14e3-13 Wheel Sensor
• B14e3-1c Wheel Sensor
• B14e3-38 Wheel Sensor
• B14e3-4a Wheel Sensor
• B14e3-64 Wheel Sensor
• B14e4-64 Wheel Sensor
• B14e5-64 Adas Control Unit System
• B14e5-92 Adas Control Unit System
• B14e6-85 Brake Control System
• B14e6-92 Brake Control System
• C18d0-01 Brake Power Supply Back up Unit
• C18d1-09 Brake Power Supply Back up Unit
• C18d2-12 Brake Power Supply Back up Unit
• C18d3-14 Brake Power Supply Back up Unit
• C18d4-14 Brake Power Supply Back up Unit
• C18d5-09 Brake Power Supply Back up Unit
• C18d6-09 Brake Power Supply Back up Unit
• C18d7-09 Brake Power Supply Back up Unit
• C18d8-09 Brake Power Supply Back up Unit
• C18d9-09 Brake Power Supply Back up Unit
• C18da-09 Brake Power Supply Back up Unit
• C18db-09 Brake Power Supply Back up Unit
• C18dc-09 Brake Power Supply Back up Unit
• C18dd-09 Brake Power Supply Back up Unit
• C18de-82 Brake Power Supply Back up Unit
• C18de-83 Brake Power Supply Back up Unit
• C18de-87 Brake Power Supply Back up Unit
• C18e1-04 Motor
• C18e1-07 Motor
• C18e1-18 Motor
• C18e1-19 Motor
• C18e1-49 Motor
• C18e1-4b Motor
• C18e3-86 Abs Actuator and Electric Unit (control Unit) System
• C18e4-88 Can Comm Circuit
• C18e5-88 Can Comm Circuit
• C18e6-49 Can Comm System
• C18e7-13 Power Supply Circuit
• C18e7-16 Power Supply Circuit
• C18e7-17 Power Supply Circuit
• C18e7-1c Power Supply Circuit
• C18e9-01 Control Module
• C18e9-04 Control Module
• C18e9-44 Control Module
• C18e9-45 Control Module
• C18e9-46 Control Module
• C18e9-47 Control Module
• C18e9-48 Control Module
• C18e9-49 Control Module
• C18e9-96 Control Module
• C18ea-01 Abs Actuator and Electric Unit (control Unit) System
• C18eb-01 Brake Power Supply Back up Unit
• C18ec-01 Stroke Sensor
• C18ec-04 Stroke Sensor
• C18ec-11 Stroke Sensor
• C18ec-12 Stroke Sensor
• C18ec-13 Stroke Sensor
• C18ec-14 Stroke Sensor
• C18ec-15 Stroke Sensor
• C18ec-1f Stroke Sensor
• C18ed-04 Motor
• C18ee-01 Stroke Sensor
• C18ee-04 Stroke Sensor
• C18ee-64 Stroke Sensor
• C18ee-87 Stroke Sensor
• C18ee-96 Stroke Sensor
• C18ef-16 Rotor Position Sensor
• C18ef-17 Rotor Position Sensor
• C18ef-96 Rotor Position Sensor
• C18f1-08 Vdc System
• C18f3-04 Overheat
• C18f3-4b Overheat
• C18f4-86 Bcm System
• C18f5-08 Ipdm E/r System
• C18f6-08 Vcm System
• C18f7-08 Abs Actuator and Electric Unit (control Unit) System
• C18f7-86 Abs Actuator and Electric Unit (control Unit) System
• C18f8-08 Vcm System
• C18f8-86 Vcm System
• C18f9-02 Abs Actuator and Electric Unit (control Unit) System
• C18fa-44 Programing Incomplete
• C18fa-46 Programing Incomplete
• C18fc-18 Temperature Sensor
• C18fc-19 Temperature Sensor
• C18fd-18 Temperature Sensor
• C18fd-19 Temperature Sensor
• C18fe-29 Temperature Sensor
• U1fa1-86 Can Comm Circuit
• U2140-87 Can Comm Circuit
• U2143-87 Can Comm Circuit
• U2148-87 Can Comm Circuit
• U214f-87 Can Comm Circuit
• U2240-87 Can Comm Circuit
• U2243-87 Can Comm Circuit
• U2248-87 Can Comm Circuit
• U224f-87 Can Comm Circuit
• U2252-87 Can Comm Circuit
• U225b-87 Can Comm Circuit
• Power Supply and Ground Circuit
• Warning Buzzer
• Brake Warning Lamp
• Brake System Warning Lamp

B14e0-02 Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E0	02	Wheel sensor		Diagnosis condition	Power switch is ON.
				Signal (terminal)	Front left wheel sensor signal
				Threshold	When a malfunction is detected in front left wheel sensor.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Front left wheel sensor

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–02" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E0–02" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL SENSOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the front left wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the front left wheel sensor. Refer to Removal and Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–02” detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the front left wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 6.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–02” detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–02” detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect front left wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and front left wheel sensor harness connector.

   • Measurement connector and terminal for power supply circuit

     Electrically-driven intelligent brake unit		Front left wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	4	B176	1	Existed

   • Measurement connector and terminal for signal circuit

     Electrically-driven intelligent brake unit		Front left wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	21	B176	2	Existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 10.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect front left wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–02” detected?

YES>>

GO TO 11.

NO>>

INSPECTION END

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect front left wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to front left wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 12.

REPLACE WHEEL SENSOR

1. Replace the front left wheel sensor. Refer to Removal and Installation.

2. Connect electrically-driven intelligent brake unit harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–02” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e0-09 Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E0	09	Wheel sensor		Diagnosis condition	Power switch is ON.
				Signal (terminal)	Front left wheel sensor signal
				Threshold	When distance between front left wheel sensor and front left wheel sensor rotor is large.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Front left wheel sensor

• Front left sensor rotor

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–09" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E0–09" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL HUB ASSEMBLY

Check that there is no excessive looseness in front left wheel hub assembly. Refer to FRONT WHEEL HUB AND KNUCKLE : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace the front left wheel hub assembly. Refer to FRONT WHEEL HUB AND KNUCKLE : Removal & Installation. GO TO 4.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 5.

CHECK TIRE

1. Power switch OFF.

2. Check the front left tire air pressure, wear and size. Refer to TIRE AIR PRESSURE : Service Data.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Adjust air pressure or replace front left tire. GO TO 6.

CHECK DATA MONITOR (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Set the vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

8. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front left wheel sensor and the maximum/minimum wheel speed detected by the other front left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 7.

NO>>

GO TO 8.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–09” detected?

YES>>

GO TO 8.

NO>>

INSPECTION END

CHECK WHEEL SENSOR AND SENSOR ROTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect front left wheel sensor harness connector.

5. Remove dust and foreign matter adhered to the front left wheel sensor and front left sensor rotor with a vacuum dust collector through the front left wheel sensor mounting hole.

   CAUTION:

   Install front left wheel sensor with no backlash and float, and tighten the mounting bolt to the specified torque. Refer to FRONT WHEEL SENSOR : Exploded View.

>>

GO TO 9.

CHECK WHEEL SENSOR

Check the front left wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 13.

NO>>

GO TO 10.

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect front left wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to front left wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 11.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the front left wheel sensor. Refer to Removal and Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Set the vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

10. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front left wheel sensor and the maximum/minimum wheel speed detected by the other front left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 12.

NO>>

GO TO 24.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–09” detected?

YES>>

GO TO 24.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the front left wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 16.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 14.

CHECK DATA MONITOR (2)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Set the vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

8. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front left wheel sensor and the maximum/minimum wheel speed detected by the other front left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 15.

NO>>

GO TO 16.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–09” detected?

YES>>

GO TO 16.

NO>>

INSPECTION END

CHECK TERMINAL

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit terminals for damage or loose connection with harness connector.

6. Disconnect front left wheel sensor harness connector.

7. Check the front left wheel sensor terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES>>

GO TO 19.

NO>>

Repair / replace harness, connector, or terminal. GO TO 17.

CHECK DATA MONITOR (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect front left wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Set the vehicle to READY.

9. Erase self-diagnosis result for “BRAKE”.

10. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

    NOTE:

    Set the “Data monitor” recording speed to “10 msec”.

11. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front left wheel sensor and the maximum/minimum wheel speed detected by the other front left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 18.

NO>>

GO TO 19.

PERFORM SELF-DIAGNOSIS (5)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–09” detected?

YES>>

GO TO 19.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect front left wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and front left wheel sensor harness connector.

   Electrically-driven intelligent brake unit		—	Continuity
   Connector	Terminal
   B64	4, 21	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 20.

NO>>

Repair / replace harness or connector. GO TO 20.

CHECK DATA MONITOR (4)

With CONSULT

1. Connect ABS actuator and electric unit (control unit) harness connector.

2. Connect front left wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Set the vehicle to READY.

9. Erase self-diagnosis result for “BRAKE”.

10. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

    NOTE:

    Set the “Data monitor” recording speed to “10 msec”.

11. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front left wheel sensor and the maximum/minimum wheel speed detected by the other front left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 21.

NO>>

GO TO 22.

PERFORM SELF-DIAGNOSIS (6)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–09” detected?

YES>>

GO TO 22.

NO>>

INSPECTION END

REPLACE WHEEL SENSOR (2)

With CONSULT

1. Replace the front left wheel sensor. Refer to Removal and Installation.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Set the vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

9. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front left wheel sensor and the maximum/minimum wheel speed detected by the other front left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 23.

NO>>

GO TO 24.

PERFORM SELF-DIAGNOSIS (7)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–09” detected?

YES>>

GO TO 24.

NO>>

INSPECTION END

REPLACE SENSOR ROTOR

With CONSULT

1. Replace the front left sensor rotor. Refer to FRONT SENSOR ROTOR : Removal & Installation.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Set the Nissan Ariya vehicle to READY.

8. Drive the vehicle at approximately 50 km/h (31 MPH) or more for approximately 2 minutes.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

9. Stop the Nissan Ariya vehicle.

10. Power switch OFF and disconnect CONSULT from data link connector.

11. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

12. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

13. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–09” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e0-38 Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E0	38	Wheel sensor		1	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Front left wheel sensor signal
					Threshold	When a malfunction is detected in information of front left wheel sensor.
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Front left wheel sensor signal
					Threshold	When a malfunction is detected in rotation speed of front left wheel sensor.
					Diagnosis delay time	1 second or less
				3	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Front left wheel sensor signal
					Threshold	When a noise is detected in front left wheel sensor.
					Diagnosis delay time	1 second or less
				4	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Front left wheel sensor signal
					Threshold	When a no signal detected in front left wheel sensor.
					Diagnosis delay time	1 second or less
				5	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Front left wheel sensor signal
					Threshold	When a malfunction is detected in signal of front left wheel sensor.
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Front left wheel sensor

• Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–38" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E0–38" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL HUB ASSEMBLY

Check that there is no excessive looseness in front left wheel hub assembly. Refer to FRONT WHEEL HUB AND KNUCKLE : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace the front left wheel hub assembly. Refer to FRONT WHEEL HUB AND KNUCKLE : Removal & Installation. GO TO 4.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 5.

CHECK TIRE

1. Power switch OFF.

2. Check the front left tire air pressure, wear and size. Refer to TIRE AIR PRESSURE : Service Data.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Adjust air pressure or replace front left tire. GO TO 6.

CHECK DATA MONITOR (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Set the vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

8. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front left wheel sensor and the maximum/minimum wheel speed detected by the other front left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 7.

NO>>

GO TO 8.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–38” detected?

YES>>

GO TO 8.

NO>>

INSPECTION END

CHECK WHEEL SENSOR AND SENSOR ROTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect front left wheel sensor harness connector.

5. Remove dust and foreign matter adhered to the front left wheel sensor and front left sensor rotor with a vacuum dust collector through the front left wheel sensor mounting hole.

   CAUTION:

   Install front left wheel sensor with no backlash and float, and tighten the mounting bolt to the specified torque. Refer to FRONT WHEEL SENSOR : Exploded View.

>>

GO TO 9.

CHECK WHEEL SENSOR

Check the front left wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 13.

NO>>

GO TO 10.

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect front left wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to front left wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 11.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the front left wheel sensor. Refer to Removal and Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Set the vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

10. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front left wheel sensor and the maximum/minimum wheel speed detected by the other front left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 12.

NO>>

GO TO 24.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–38” detected?

YES>>

GO TO 24.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the front left wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 16.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 14.

CHECK DATA MONITOR (2)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Set the vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

8. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front left wheel sensor and the maximum/minimum wheel speed detected by the other front left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 15.

NO>>

GO TO 16.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–38” detected?

YES>>

GO TO 16.

NO>>

INSPECTION END

CHECK TERMINAL

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit terminals for damage or loose connection with harness connector.

6. Disconnect front left wheel sensor harness connector.

7. Check the front left wheel sensor terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES>>

GO TO 19.

NO>>

Repair / replace harness, connector, or terminal. GO TO 17.

CHECK DATA MONITOR (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect front left wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Set the vehicle to READY.

9. Erase self-diagnosis result for “BRAKE”.

10. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

    NOTE:

    Set the “Data monitor” recording speed to “10 msec”.

11. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front left wheel sensor and the maximum/minimum wheel speed detected by the other front left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 18.

NO>>

GO TO 19.

PERFORM SELF-DIAGNOSIS (5)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–38” detected?

YES>>

GO TO 19.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect front left wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and front left wheel sensor harness connector.

   Electrically-driven intelligent brake unit		—	Continuity
   Connector	Terminal
   B64	4, 21	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 20.

NO>>

Repair / replace harness or connector. GO TO 20.

CHECK DATA MONITOR (4)

With CONSULT

1. Connect ABS actuator and electric unit (control unit) harness connector.

2. Connect front left wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Set the vehicle to READY.

9. Erase self-diagnosis result for “BRAKE”.

10. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

    NOTE:

    Set the “Data monitor” recording speed to “10 msec”.

11. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front left wheel sensor and the maximum/minimum wheel speed detected by the other front left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 21.

NO>>

GO TO 22.

PERFORM SELF-DIAGNOSIS (6)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–38” detected?

YES>>

GO TO 22.

NO>>

INSPECTION END

REPLACE WHEEL SENSOR (2)

With CONSULT

1. Replace the front left wheel sensor. Refer to Removal and Installation.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Set the vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

9. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front left wheel sensor and the maximum/minimum wheel speed detected by the other front left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 23.

NO>>

GO TO 24.

PERFORM SELF-DIAGNOSIS (7)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–38” detected?

YES>>

GO TO 24.

NO>>

INSPECTION END

REPLACE SENSOR ROTOR

With CONSULT

1. Replace the front left sensor rotor. Refer to FRONT SENSOR ROTOR : Removal & Installation.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Set the Nissan Ariya vehicle to READY.

8. Drive the vehicle at approximately 50 km/h (31 MPH) or more for approximately 2 minutes.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

9. Stop the Nissan Ariya vehicle.

10. Power switch OFF and disconnect CONSULT from data link connector.

11. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

12. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

13. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–38” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e0-4a Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E0	4A	Wheel sensor		Diagnosis condition	Power switch is ON.
				Signal (terminal)	Front left wheel sensor signal
				Threshold	When front left wheel sensor is installed to wrong position.
				Diagnosis delay time	3 seconds or less

POSSIBLE CAUSE

• Front left wheel sensor

• Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E0–4A" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E0–4A" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

REPLACE WHEEL SENSOR

1. Replace the front left wheel sensor. Refer to Removal and Installation.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is the display result "B14E0-4A" of “CRNT”?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e1-09 Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E1	09	Wheel sensor		Diagnosis condition	Power switch is ON.
				Signal (terminal)	Front right wheel sensor signal
				Threshold	When distance between front right wheel sensor and front right wheel sensor rotor is large.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Front right wheel sensor

• Front right sensor rotor

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–09" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E1–09" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL HUB ASSEMBLY

Check that there is no excessive looseness in front right wheel hub assembly. Refer to FRONT WHEEL HUB AND KNUCKLE : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace the front right wheel hub assembly. Refer to FRONT WHEEL HUB AND KNUCKLE : Removal & Installation. GO TO 4.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 5.

CHECK TIRE

1. Power switch OFF.

2. Check the front right tire air pressure, wear and size. Refer to TIRE AIR PRESSURE : Service Data.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Adjust air pressure or replace front right tire. GO TO 6.

CHECK DATA MONITOR (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Set the vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

8. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front right wheel sensor and the maximum/minimum wheel speed detected by the other front right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 7.

NO>>

GO TO 8.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–09” detected?

YES>>

GO TO 8.

NO>>

INSPECTION END

CHECK WHEEL SENSOR AND SENSOR ROTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect front right wheel sensor harness connector.

5. Remove dust and foreign matter adhered to the front right wheel sensor and front right sensor rotor with a vacuum dust collector through the front right wheel sensor mounting hole.

   CAUTION:

   Install front right wheel sensor with no backlash and float, and tighten the mounting bolt to the specified torque. Refer to FRONT WHEEL SENSOR : Exploded View.

>>

GO TO 9.

CHECK WHEEL SENSOR

Check the front right wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 13.

NO>>

GO TO 10.

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect front right wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to front right wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 11.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the front right wheel sensor. Refer to Removal and Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Set the vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

10. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front right wheel sensor and the maximum/minimum wheel speed detected by the other front right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 12.

NO>>

GO TO 24.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–09” detected?

YES>>

GO TO 24.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the front right wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 16.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 14.

CHECK DATA MONITOR (2)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Set the vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

8. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front right wheel sensor and the maximum/minimum wheel speed detected by the other front right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 15.

NO>>

GO TO 16.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–09” detected?

YES>>

GO TO 16.

NO>>

INSPECTION END

CHECK TERMINAL

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit terminals for damage or loose connection with harness connector.

6. Disconnect front right wheel sensor harness connector.

7. Check the front right wheel sensor terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES>>

GO TO 19.

NO>>

Repair / replace harness, connector, or terminal. GO TO 17.

CHECK DATA MONITOR (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect front right wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Set the vehicle to READY.

9. Erase self-diagnosis result for “BRAKE”.

10. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

    NOTE:

    Set the “Data monitor” recording speed to “10 msec”.

11. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front right wheel sensor and the maximum/minimum wheel speed detected by the other front right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 18.

NO>>

GO TO 19.

PERFORM SELF-DIAGNOSIS (5)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–09” detected?

YES>>

GO TO 19.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect front right wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and front right wheel sensor harness connector.

   Electrically-driven intelligent brake unit		—	Continuity
   Connector	Terminal
   B64	12, 11	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 20.

NO>>

Repair / replace harness or connector. GO TO 20.

CHECK DATA MONITOR (4)

With CONSULT

1. Connect ABS actuator and electric unit (control unit) harness connector.

2. Connect front right wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Set the vehicle to READY.

9. Erase self-diagnosis result for “BRAKE”.

10. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

    NOTE:

    Set the “Data monitor” recording speed to “10 msec”.

11. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front right wheel sensor and the maximum/minimum wheel speed detected by the other front right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 21.

NO>>

GO TO 22.

PERFORM SELF-DIAGNOSIS (6)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–09” detected?

YES>>

GO TO 22.

NO>>

INSPECTION END

REPLACE WHEEL SENSOR (2)

With CONSULT

1. Replace the front right wheel sensor. Refer to Removal and Installation.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Set the vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

9. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front right wheel sensor and the maximum/minimum wheel speed detected by the other front right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 23.

NO>>

GO TO 24.

PERFORM SELF-DIAGNOSIS (7)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–09” detected?

YES>>

GO TO 24.

NO>>

INSPECTION END

REPLACE SENSOR ROTOR

With CONSULT

1. Replace the front right sensor rotor. Refer to FRONT SENSOR ROTOR : Removal & Installation.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Set the Nissan Ariya vehicle to READY.

8. Drive the vehicle at approximately 50 km/h (31 MPH) or more for approximately 2 minutes.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

9. Stop the Nissan Ariya vehicle.

10. Power switch OFF and disconnect CONSULT from data link connector.

11. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

12. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

13. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–09” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e1-38 Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E1	38	Wheel sensor		1	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Front right wheel sensor signal
					Threshold	When a malfunction is detected in information of front right wheel sensor.
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Front right wheel sensor signal
					Threshold	When a malfunction is detected in rotation speed of front right wheel sensor.
					Diagnosis delay time	1 second or less
				3	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Front right wheel sensor signal
					Threshold	When a noise is detected in front right wheel sensor.
					Diagnosis delay time	1 second or less
				4	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Front right wheel sensor signal
					Threshold	When a no signal detected in front right wheel sensor.
					Diagnosis delay time	1 second or less
				5	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Front right wheel sensor signal
					Threshold	When a malfunction is detected in signal of front right wheel sensor.
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Front right wheel sensor

• Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–38" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E1–38" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL HUB ASSEMBLY

Check that there is no excessive looseness in front right wheel hub assembly. Refer to FRONT WHEEL HUB AND KNUCKLE : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace the front right wheel hub assembly. Refer to FRONT WHEEL HUB AND KNUCKLE : Removal & Installation. GO TO 4.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 5.

CHECK TIRE

1. Power switch OFF.

2. Check the front right tire air pressure, wear and size. Refer to TIRE AIR PRESSURE : Service Data.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Adjust air pressure or replace front right tire. GO TO 6.

CHECK DATA MONITOR (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Set the vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

8. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front right wheel sensor and the maximum/minimum wheel speed detected by the other front right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 7.

NO>>

GO TO 8.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–38” detected?

YES>>

GO TO 8.

NO>>

INSPECTION END

CHECK WHEEL SENSOR AND SENSOR ROTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect front right wheel sensor harness connector.

5. Remove dust and foreign matter adhered to the front right wheel sensor and front right sensor rotor with a vacuum dust collector through the front right wheel sensor mounting hole.

   CAUTION:

   Install front right wheel sensor with no backlash and float, and tighten the mounting bolt to the specified torque. Refer to FRONT WHEEL SENSOR : Exploded View.

>>

GO TO 9.

CHECK WHEEL SENSOR

Check the front right wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 13.

NO>>

GO TO 10.

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect front right wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to front right wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 11.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the front right wheel sensor. Refer to Removal and Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Set the vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

10. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front right wheel sensor and the maximum/minimum wheel speed detected by the other front right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 12.

NO>>

GO TO 24.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–38” detected?

YES>>

GO TO 24.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the front right wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 16.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 14.

CHECK DATA MONITOR (2)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Set the vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

8. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front right wheel sensor and the maximum/minimum wheel speed detected by the other front right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 15.

NO>>

GO TO 16.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–38” detected?

YES>>

GO TO 16.

NO>>

INSPECTION END

CHECK TERMINAL

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit terminals for damage or loose connection with harness connector.

6. Disconnect front right wheel sensor harness connector.

7. Check the front right wheel sensor terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES>>

GO TO 19.

NO>>

Repair / replace harness, connector, or terminal. GO TO 17.

CHECK DATA MONITOR (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect front right wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Set the vehicle to READY.

9. Erase self-diagnosis result for “BRAKE”.

10. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

    NOTE:

    Set the “Data monitor” recording speed to “10 msec”.

11. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front right wheel sensor and the maximum/minimum wheel speed detected by the other front right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 18.

NO>>

GO TO 19.

PERFORM SELF-DIAGNOSIS (5)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–38” detected?

YES>>

GO TO 19.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect front right wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and front right wheel sensor harness connector.

   Electrically-driven intelligent brake unit		—	Continuity
   Connector	Terminal
   B64	12, 11	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 20.

NO>>

Repair / replace harness or connector. GO TO 20.

CHECK DATA MONITOR (4)

With CONSULT

1. Connect ABS actuator and electric unit (control unit) harness connector.

2. Connect front right wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Set the vehicle to READY.

9. Erase self-diagnosis result for “BRAKE”.

10. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

    NOTE:

    Set the “Data monitor” recording speed to “10 msec”.

11. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front right wheel sensor and the maximum/minimum wheel speed detected by the other front right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 21.

NO>>

GO TO 22.

PERFORM SELF-DIAGNOSIS (6)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–38” detected?

YES>>

GO TO 22.

NO>>

INSPECTION END

REPLACE WHEEL SENSOR (2)

With CONSULT

1. Replace the front right wheel sensor. Refer to Removal and Installation.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Set the vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

9. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by front right wheel sensor and the maximum/minimum wheel speed detected by the other front right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 23.

NO>>

GO TO 24.

PERFORM SELF-DIAGNOSIS (7)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–38” detected?

YES>>

GO TO 24.

NO>>

INSPECTION END

REPLACE SENSOR ROTOR

With CONSULT

1. Replace the front right sensor rotor. Refer to FRONT SENSOR ROTOR : Removal & Installation.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Set the Nissan Ariya vehicle to READY.

8. Drive the vehicle at approximately 50 km/h (31 MPH) or more for approximately 2 minutes.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

9. Stop the Nissan Ariya vehicle.

10. Power switch OFF and disconnect CONSULT from data link connector.

11. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

12. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

13. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–38” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e1-4a Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E1	4A	Wheel sensor		Diagnosis condition	Power switch is ON.
				Signal (terminal)	Front right wheel sensor signal
				Threshold	When front right wheel sensor is installed to wrong position.
				Diagnosis delay time	3 seconds or less

POSSIBLE CAUSE

• Front right wheel sensor

• Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–4A" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E1–4A" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

REPLACE WHEEL SENSOR

1. Replace the front right wheel sensor. Refer to Removal and Installation.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is the display result "B14E1-4A" of “CRNT”?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e1-64 Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E1	64	Wheel sensor		1	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Front right wheel sensor signal
					Threshold	When difference between the front right wheel sensor and the wheel speed other than the front right wheel sensor is 6 km/h (4 MPH) or more [when driving 100 km/h (62 MPH) or less].
					Diagnosis delay time	18 seconds or more
				2	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Front right wheel sensor signal
					Threshold	When difference between the front right wheel sensor and the wheel speed other than the front right wheel sensor is 6% or more [when driving 100 km/h (62 MPH) or less].
					Diagnosis delay time	1 second or less
				3	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Front right wheel sensor signal
					Threshold	When a malfunction is detected in rotation speed of front right wheel sensor.
					Diagnosis delay time	1 second or less
				4	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Front right wheel sensor signal
					Threshold	When front right wheel sensor is different rotation direction from wheel sensor other than front wheel right.
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Front right wheel sensor

• Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–64" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E1–64" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL SENSOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the front right wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the front right wheel sensor. Refer to Removal and Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–64” detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the front right wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 6.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–64” detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–64” detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect front right wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and front right wheel sensor harness connector.

   • Measurement connector and terminal for power supply circuit

     Electrically-driven intelligent brake unit		Front right wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	12	E110	1	Existed

   • Measurement connector and terminal for signal circuit

     Electrically-driven intelligent brake unit		Front right wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	11	E110	2	Existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 10.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect front right wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–64” detected?

YES>>

GO TO 11.

NO>>

INSPECTION END

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect front right wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to front right wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 12.

REPLACE WHEEL SENSOR

1. Replace the front right wheel sensor. Refer to Removal and Installation.

2. Connect electrically-driven intelligent brake unit harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E1–64” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e2-02 Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E2	02	Wheel sensor		Diagnosis condition	Power switch is ON.
				Signal (terminal)	Rear left wheel sensor signal
				Threshold	When a malfunction is detected in rear left wheel sensor.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Rear left wheel sensor

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–02" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E2–02" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL SENSOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the rear left wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the rear left wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–02” detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the rear left wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 6.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–02” detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–02” detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect rear left wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and rear left wheel sensor harness connector.

   • Measurement connector and terminal for power supply circuit

     Electrically-driven intelligent brake unit		Rear left wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	3	B179	1	Existed

   • Measurement connector and terminal for signal circuit

     Electrically-driven intelligent brake unit		Rear left wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	19	B179	2	Existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 10.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect rear left wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–02” detected?

YES>>

GO TO 11.

NO>>

INSPECTION END

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect rear left wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to rear left wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 12.

REPLACE WHEEL SENSOR

1. Replace the rear left wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect electrically-driven intelligent brake unit harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–02” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e2-09 Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E2	09	Wheel sensor		Diagnosis condition	Power switch is ON.
				Signal (terminal)	Rear left wheel sensor signal
				Threshold	When distance between rear left wheel sensor and rear left wheel sensor rotor is large.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Rear left wheel sensor

• Rear left sensor rotor

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–09" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E2–09" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL HUB ASSEMBLY

Check that there is no excessive looseness in rear left wheel hub assembly. Refer to REAR WHEEL HUB : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace the rear left wheel hub assembly. Refer to REAR WHEEL HUB : Removal & Installation. GO TO 4.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 5.

CHECK TIRE

1. Power switch OFF.

2. Check the rear left tire air pressure, wear and size. Refer to TIRE AIR PRESSURE : Service Data.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Adjust air pressure or replace rear left tire. GO TO 6.

CHECK DATA MONITOR (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Set the vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

8. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear left wheel sensor and the maximum/minimum wheel speed detected by the other rear left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 7.

NO>>

GO TO 8.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–09” detected?

YES>>

GO TO 8.

NO>>

INSPECTION END

CHECK WHEEL SENSOR AND SENSOR ROTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect rear left wheel sensor harness connector.

5. Remove dust and foreign matter adhered to the rear left wheel sensor and rear left sensor rotor with a vacuum dust collector through the rear left wheel sensor mounting hole.

   CAUTION:

   Install rear left wheel sensor with no backlash and float, and tighten the mounting bolt to the specified torque. Refer to REAR WHEEL SENSOR : Exploded View.

>>

GO TO 9.

CHECK WHEEL SENSOR

Check the rear left wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 13.

NO>>

GO TO 10.

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect rear left wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to rear left wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 11.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the rear left wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Set the vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

10. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear left wheel sensor and the maximum/minimum wheel speed detected by the other rear left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 12.

NO>>

GO TO 24.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–09” detected?

YES>>

GO TO 24.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the rear left wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 16.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 14.

CHECK DATA MONITOR (2)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Set the vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

8. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear left wheel sensor and the maximum/minimum wheel speed detected by the other rear left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 15.

NO>>

GO TO 16.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–09” detected?

YES>>

GO TO 16.

NO>>

INSPECTION END

CHECK TERMINAL

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit terminals for damage or loose connection with harness connector.

6. Disconnect rear left wheel sensor harness connector.

7. Check the rear left wheel sensor terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES>>

GO TO 19.

NO>>

Repair / replace harness, connector, or terminal. GO TO 17.

CHECK DATA MONITOR (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect rear left wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Set the vehicle to READY.

9. Erase self-diagnosis result for “BRAKE”.

10. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

    NOTE:

    Set the “Data monitor” recording speed to “10 msec”.

11. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear left wheel sensor and the maximum/minimum wheel speed detected by the other rear left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 18.

NO>>

GO TO 19.

PERFORM SELF-DIAGNOSIS (5)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–09” detected?

YES>>

GO TO 19.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect rear left wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and rear left wheel sensor harness connector.

   Electrically-driven intelligent brake unit		—	Continuity
   Connector	Terminal
   B64	3, 19	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 20.

NO>>

Repair / replace harness or connector. GO TO 20.

CHECK DATA MONITOR (4)

With CONSULT

1. Connect ABS actuator and electric unit (control unit) harness connector.

2. Connect rear left wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Set the vehicle to READY.

9. Erase self-diagnosis result for “BRAKE”.

10. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

    NOTE:

    Set the “Data monitor” recording speed to “10 msec”.

11. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear left wheel sensor and the maximum/minimum wheel speed detected by the other rear left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 21.

NO>>

GO TO 22.

PERFORM SELF-DIAGNOSIS (6)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–09” detected?

YES>>

GO TO 22.

NO>>

INSPECTION END

REPLACE WHEEL SENSOR (2)

With CONSULT

1. Replace the rear left wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Set the vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

9. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear left wheel sensor and the maximum/minimum wheel speed detected by the other rear left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 23.

NO>>

GO TO 24.

PERFORM SELF-DIAGNOSIS (7)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–09” detected?

YES>>

GO TO 24.

NO>>

INSPECTION END

REPLACE SENSOR ROTOR

With CONSULT

1. Replace the rear left sensor rotor. Refer to REAR SENSOR ROTOR : Removal & Installation.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Set the Nissan Ariya vehicle to READY.

8. Drive the vehicle at approximately 50 km/h (31 MPH) or more for approximately 2 minutes.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

9. Stop the Nissan Ariya vehicle.

10. Power switch OFF and disconnect CONSULT from data link connector.

11. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

12. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

13. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–09” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e2-11 Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E2	11	Wheel sensor		1	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear left wheel sensor signal
					Threshold	When an open circuit is detected in rear left wheel sensor circuit (signal line).
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear left wheel sensor signal
					Threshold	When short circuit to ground side is detected in rear left wheel sensor circuit (signal line).
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Harness or connector

• Rear left wheel sensor

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2-11" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E2–11" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL SENSOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the rear left wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the rear left wheel sensor. Refer to Removal and Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–11” detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the rear left wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 6.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–11” detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–11” detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect rear left wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and rear left wheel sensor harness connector.

   • Measurement connector and terminal for power supply circuit

     Electrically-driven intelligent brake unit		Rear left wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	3	B179	1	Existed

   • Measurement connector and terminal for signal circuit

     Electrically-driven intelligent brake unit		Rear left wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	19	B179	2	Existed

Is the inspection result normal?

YES>>

GO TO 11.

NO>>

Repair / replace harness or connector. GO TO 10.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect rear left wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–11” detected?

YES>>

GO TO 11.

NO>>

INSPECTION END

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect rear left wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to rear left wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 12.

REPLACE WHEEL SENSOR

1. Replace the rear left wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect electrically-driven intelligent brake unit harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–11” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e2-12 Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E0	12	Wheel sensor		Diagnosis condition	Power switch is ON.
				Signal (terminal)	Rear left wheel sensor signal
				Threshold	When short circuit to power supply side is detected in rear left wheel sensor circuit (signal line).
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Harness or connector

• Rear left wheel sensor

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–12" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E2–12" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL SENSOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the rear left wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the rear left wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–12” detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the rear left wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 6.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–12” detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–12” detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect rear left wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and rear left wheel sensor harness connector.

   • Measurement connector and terminal for power supply circuit

     Electrically-driven intelligent brake unit		Rear left wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	3	B179	1	Existed

   • Measurement connector and terminal for signal circuit

     Electrically-driven intelligent brake unit		Rear left wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	19	B179	2	Existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 10.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect rear left wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–12” detected?

YES>>

GO TO 11.

NO>>

INSPECTION END

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect rear left wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to rear left wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 12.

REPLACE WHEEL SENSOR

1. Replace the rear left wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect electrically-driven intelligent brake unit harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–12” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e2-13 Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E2	13	Wheel sensor		1	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear left wheel sensor signal
					Threshold	When an open circuit is detected in rear left wheel sensor circuit (power supply line).
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear left wheel sensor signal
					Threshold	When short circuit to ground side is detected in rear left wheel sensor circuit (power supply line).
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Harness or connector

• Rear left wheel sensor

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–13" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E2–13" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL SENSOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the rear left wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the rear left wheel sensor. Refer to Removal and Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–13” detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the rear left wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 6.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–13” detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–13” detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect rear left wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and rear left wheel sensor harness connector.

   • Measurement connector and terminal for power supply circuit

     Electrically-driven intelligent brake unit		Rear left wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	3	B179	1	Existed

   • Measurement connector and terminal for signal circuit

     Electrically-driven intelligent brake unit		Rear left wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	19	B179	2	Existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 10.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect rear left wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–13” detected?

YES>>

GO TO 11.

NO>>

INSPECTION END

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect rear left wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to rear left wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 12.

REPLACE WHEEL SENSOR

1. Replace the rear left wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect electrically-driven intelligent brake unit harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–13” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e2-1c Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E2	1C	Wheel sensor		1	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear left wheel sensor signal
					Threshold	When font left wheel sensor power supply voltage is 6.7 V or less.
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear left wheel sensor signal
					Threshold	When an open circuit is detected in rear left wheel sensor circuit (power supply line).
					Diagnosis delay time	1 second or less
				3	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear left wheel sensor signal
					Threshold	When short circuit to ground side is detected in rear left wheel sensor circuit (power supply line).
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Harness or connector

• Rear left wheel sensor

• Electrically-driven intelligent brake unit

• Electrically-driven intelligent brake unit power supply

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–1C" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E2–1C" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL SENSOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the rear left wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the rear left wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–1C” detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the rear left wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 6.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–1C” detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–1C” detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect rear left wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and rear left wheel sensor harness connector.

   • Measurement connector and terminal for power supply circuit

     Electrically-driven intelligent brake unit		Rear left wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	3	B179	1	Existed

   • Measurement connector and terminal for signal circuit

     Electrically-driven intelligent brake unit		Rear left wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	19	B179	2	Existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 10.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect rear left wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–1C” detected?

YES>>

GO TO 11.

NO>>

INSPECTION END

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect rear left wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to rear left wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 12.

REPLACE WHEEL SENSOR

1. Replace the rear left wheel sensor. Refer to Removal and Installation.

2. Connect electrically-driven intelligent brake unit harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–1C” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e2-38 Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E2	38	Wheel sensor		1	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear left wheel sensor signal
					Threshold	When a malfunction is detected in information of rear left wheel sensor.
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear left wheel sensor signal
					Threshold	When a malfunction is detected in rotation speed of rear left wheel sensor.
					Diagnosis delay time	1 second or less
				3	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear left wheel sensor signal
					Threshold	When a noise is detected in rear left wheel sensor.
					Diagnosis delay time	1 second or less
				4	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear left wheel sensor signal
					Threshold	When a no signal detected in rear left wheel sensor.
					Diagnosis delay time	1 second or less
				5	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear left wheel sensor signal
					Threshold	When a malfunction is detected in signal of rear left wheel sensor.
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Rear left wheel sensor

• Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–38" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E2–38" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL HUB ASSEMBLY

Check that there is no excessive looseness in rear left wheel hub assembly. Refer to REAR WHEEL HUB : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace the rear left wheel hub assembly. Refer to REAR WHEEL HUB : Removal & Installation. GO TO 4.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 5.

CHECK TIRE

1. Power switch OFF.

2. Check the rear left tire air pressure, wear and size. Refer to TIRE AIR PRESSURE : Service Data.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Adjust air pressure or replace rear left tire. GO TO 6.

CHECK DATA MONITOR (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Set the vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

8. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear left wheel sensor and the maximum/minimum wheel speed detected by the other rear left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 7.

NO>>

GO TO 8.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–38” detected?

YES>>

GO TO 8.

NO>>

INSPECTION END

CHECK WHEEL SENSOR AND SENSOR ROTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect rear left wheel sensor harness connector.

5. Remove dust and foreign matter adhered to the rear left wheel sensor and rear left sensor rotor with a vacuum dust collector through the rear left wheel sensor mounting hole.

   CAUTION:

   Install rear left wheel sensor with no backlash and float, and tighten the mounting bolt to the specified torque. Refer to REAR WHEEL SENSOR : Exploded View.

>>

GO TO 9.

CHECK WHEEL SENSOR

Check the rear left wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 13.

NO>>

GO TO 10.

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect rear left wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to rear left wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 11.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the rear left wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Set the vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

10. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear left wheel sensor and the maximum/minimum wheel speed detected by the other rear left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 12.

NO>>

GO TO 24.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–38” detected?

YES>>

GO TO 24.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the rear left wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 16.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 14.

CHECK DATA MONITOR (2)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Set the vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

8. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear left wheel sensor and the maximum/minimum wheel speed detected by the other rear left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 15.

NO>>

GO TO 16.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–38” detected?

YES>>

GO TO 16.

NO>>

INSPECTION END

CHECK TERMINAL

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit terminals for damage or loose connection with harness connector.

6. Disconnect rear left wheel sensor harness connector.

7. Check the rear left wheel sensor terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES>>

GO TO 19.

NO>>

Repair / replace harness, connector, or terminal. GO TO 17.

CHECK DATA MONITOR (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect rear left wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Set the vehicle to READY.

9. Erase self-diagnosis result for “BRAKE”.

10. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

    NOTE:

    Set the “Data monitor” recording speed to “10 msec”.

11. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear left wheel sensor and the maximum/minimum wheel speed detected by the other rear left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 18.

NO>>

GO TO 19.

PERFORM SELF-DIAGNOSIS (5)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–38” detected?

YES>>

GO TO 19.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect rear left wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and rear left wheel sensor harness connector.

   Electrically-driven intelligent brake unit		—	Continuity
   Connector	Terminal
   B64	3, 19	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 20.

NO>>

Repair / replace harness or connector. GO TO 20.

CHECK DATA MONITOR (4)

With CONSULT

1. Connect ABS actuator and electric unit (control unit) harness connector.

2. Connect rear left wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Set the vehicle to READY.

9. Erase self-diagnosis result for “BRAKE”.

10. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

    NOTE:

    Set the “Data monitor” recording speed to “10 msec”.

11. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear left wheel sensor and the maximum/minimum wheel speed detected by the other rear left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 21.

NO>>

GO TO 22.

PERFORM SELF-DIAGNOSIS (6)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–38” detected?

YES>>

GO TO 22.

NO>>

INSPECTION END

REPLACE WHEEL SENSOR (2)

With CONSULT

1. Replace the rear left wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Set the vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

9. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear left wheel sensor and the maximum/minimum wheel speed detected by the other rear left wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 23.

NO>>

GO TO 24.

PERFORM SELF-DIAGNOSIS (7)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–38” detected?

YES>>

GO TO 23.

NO>>

INSPECTION END

REPLACE SENSOR ROTOR

With CONSULT

1. Replace the rear left sensor rotor. Refer to REAR SENSOR ROTOR : Removal & Installation.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Set the Nissan Ariya vehicle to READY.

8. Drive the vehicle at approximately 50 km/h (31 MPH) or more for approximately 2 minutes.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

9. Stop the Nissan Ariya vehicle.

10. Power switch OFF and disconnect CONSULT from data link connector.

11. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

12. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

13. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–38” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e2-4a Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E2	4A	Wheel sensor		Diagnosis condition	Power switch is ON.
				Signal (terminal)	Rear left wheel sensor signal
				Threshold	When rear left wheel sensor is installed to wrong position.
				Diagnosis delay time	3 seconds or less

POSSIBLE CAUSE

• Rear left wheel sensor

• Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–4A" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E2–4A" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

REPLACE WHEEL SENSOR

1. Replace the rear left wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is the display result "B14E2-4A" of “CRNT”?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e2-64 Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E2	64	Wheel sensor		1	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear left wheel sensor signal
					Threshold	When difference between the rear left wheel sensor and the wheel speed other than the rear left wheel sensor is 6 km/h (4 MPH) or more [when driving 100 km/h (62 MPH) or less].
					Diagnosis delay time	18 seconds or more
				2	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear left wheel sensor signal
					Threshold	When difference between the rear left wheel sensor and the wheel speed other than the rear left wheel sensor is 6% or more [when driving 100 km/h (62 MPH) or less].
					Diagnosis delay time	1 second or less
				3	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear left wheel sensor signal
					Threshold	When a malfunction is detected in rotation speed of rear left wheel sensor.
					Diagnosis delay time	1 second or less
				4	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear left wheel sensor signal
					Threshold	When rear left wheel sensor is different rotation direction from wheel sensor other than rear wheel left.
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Rear left wheel sensor

• Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–64" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E2–64" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL SENSOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the rear left wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the rear left wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–64” detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the rear left wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 6.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–64” detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–64” detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect rear left wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and rear left wheel sensor harness connector.

   • Measurement connector and terminal for power supply circuit

     Electrically-driven intelligent brake unit		Rear left wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	3	B179	1	Existed

   • Measurement connector and terminal for signal circuit

     Electrically-driven intelligent brake unit		Rear left wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	19	B179	2	Existed

Is the inspection result normal?

YES>>

GO TO 11.

NO>>

Repair / replace harness or connector. GO TO 10.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect rear left wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–64” detected?

YES>>

GO TO 11.

NO>>

INSPECTION END

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect rear left wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to rear left wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 12.

REPLACE WHEEL SENSOR

1. Replace the rear left wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect electrically-driven intelligent brake unit harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E2–64” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e3-02 Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E3	02	Wheel sensor		Diagnosis condition	Power switch is ON.
				Signal (terminal)	Rear right wheel sensor signal
				Threshold	When a malfunction is detected in rear right wheel sensor.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Rear right wheel sensor

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–02" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E3–02" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL SENSOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the rear right wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the rear right wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–02” detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the rear right wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 6.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–02” detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–02” detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect rear right wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and rear right wheel sensor harness connector.

   • Measurement connector and terminal for power supply circuit

     Electrically-driven intelligent brake unit		Rear right wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	7	B181	1	Existed

   • Measurement connector and terminal for signal circuit

     Electrically-driven intelligent brake unit		Rear right wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	15	B181	2	Existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 10.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect rear right wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–02” detected?

YES>>

GO TO 11.

NO>>

INSPECTION END

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect rear right wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to rear right wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 12.

REPLACE WHEEL SENSOR

1. Replace the rear right wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect electrically-driven intelligent brake unit harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–02” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e3-09 Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E3	09	Wheel sensor		Diagnosis condition	Power switch is ON.
				Signal (terminal)	Rear right wheel sensor signal
				Threshold	When distance between rear right wheel sensor and rear right wheel sensor rotor is large.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Rear right wheel sensor

• Rear right sensor rotor

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–09" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E3–09" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL HUB ASSEMBLY

Check that there is no excessive looseness in rear right wheel hub assembly. Refer to REAR WHEEL HUB : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace the rear right wheel hub assembly. Refer to REAR WHEEL HUB : Removal & Installation. GO TO 4.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 5.

CHECK TIRE

1. Power switch OFF.

2. Check the rear right tire air pressure, wear and size. Refer to TIRE AIR PRESSURE : Service Data.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Adjust air pressure or replace rear right tire. GO TO 6.

CHECK DATA MONITOR (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Set the vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

8. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear right wheel sensor and the maximum/minimum wheel speed detected by the other rear right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 7.

NO>>

GO TO 8.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–09” detected?

YES>>

GO TO 8.

NO>>

INSPECTION END

CHECK WHEEL SENSOR AND SENSOR ROTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect rear right wheel sensor harness connector.

5. Remove dust and foreign matter adhered to the rear right wheel sensor and rear right sensor rotor with a vacuum dust collector through the rear right wheel sensor mounting hole.

   CAUTION:

   Install rear right wheel sensor with no backlash and float, and tighten the mounting bolt to the specified torque. Refer to REAR WHEEL SENSOR : Exploded View.

>>

GO TO 9.

CHECK WHEEL SENSOR

Check the rear right wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 13.

NO>>

GO TO 10.

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect rear right wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to rear right wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 11.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the rear right wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Set the vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

10. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear right wheel sensor and the maximum/minimum wheel speed detected by the other rear right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 12.

NO>>

GO TO 24.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–09” detected?

YES>>

GO TO 24.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the rear right wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 16.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 14.

CHECK DATA MONITOR (2)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Set the vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

8. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear right wheel sensor and the maximum/minimum wheel speed detected by the other rear right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 15.

NO>>

GO TO 16.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–09” detected?

YES>>

GO TO 16.

NO>>

INSPECTION END

CHECK TERMINAL

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit terminals for damage or loose connection with harness connector.

6. Disconnect rear right wheel sensor harness connector.

7. Check the rear right wheel sensor terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES>>

GO TO 19.

NO>>

Repair / replace harness, connector, or terminal. GO TO 17.

CHECK DATA MONITOR (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect rear right wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Set the vehicle to READY.

9. Erase self-diagnosis result for “BRAKE”.

10. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

    NOTE:

    Set the “Data monitor” recording speed to “10 msec”.

11. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear right wheel sensor and the maximum/minimum wheel speed detected by the other rear right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 18.

NO>>

GO TO 19.

PERFORM SELF-DIAGNOSIS (5)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–09” detected?

YES>>

GO TO 19.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect rear right wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and rear right wheel sensor harness connector.

   Electrically-driven intelligent brake unit		—	Continuity
   Connector	Terminal
   B64	7, 15	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 20.

NO>>

Repair / replace harness or connector. GO TO 20.

CHECK DATA MONITOR (4)

With CONSULT

1. Connect ABS actuator and electric unit (control unit) harness connector.

2. Connect rear right wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Set the vehicle to READY.

9. Erase self-diagnosis result for “BRAKE”.

10. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

    NOTE:

    Set the “Data monitor” recording speed to “10 msec”.

11. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear right wheel sensor and the maximum/minimum wheel speed detected by the other rear right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 21.

NO>>

GO TO 22.

PERFORM SELF-DIAGNOSIS (6)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–09” detected?

YES>>

GO TO 22.

NO>>

INSPECTION END

REPLACE WHEEL SENSOR (2)

With CONSULT

1. Replace the rear right wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Set the vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

9. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear right wheel sensor and the maximum/minimum wheel speed detected by the other rear right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 23.

NO>>

GO TO 24.

PERFORM SELF-DIAGNOSIS (7)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–09” detected?

YES>>

GO TO 24.

NO>>

INSPECTION END

REPLACE SENSOR ROTOR

With CONSULT

1. Replace the rear right sensor rotor. Refer to REAR SENSOR ROTOR : Removal & Installation.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Set the Nissan Ariya vehicle to READY.

8. Drive the vehicle at approximately 50 km/h (31 MPH) or more for approximately 2 minutes.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

9. Stop the Nissan Ariya vehicle.

10. Power switch OFF and disconnect CONSULT from data link connector.

11. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

12. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

13. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–09” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e3-11 Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E3	11	Wheel sensor		1	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear right wheel sensor signal
					Threshold	When an open circuit is detected in rear right wheel sensor circuit (signal line).
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear right wheel sensor signal
					Threshold	When short circuit to ground side is detected in rear right wheel sensor circuit (signal line).
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Harness or connector

• Rear right wheel sensor

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3-11" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E3–11" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL SENSOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the rear right wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the rear right wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–11” detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the rear right wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 6.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–11” detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–11” detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect rear right wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and rear right wheel sensor harness connector.

   • Measurement connector and terminal for power supply circuit

     Electrically-driven intelligent brake unit		Rear right wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	7	B181	1	Existed

   • Measurement connector and terminal for signal circuit

     Electrically-driven intelligent brake unit		Rear right wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	15	B181	2	Existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 10.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect rear right wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–11” detected?

YES>>

GO TO 11.

NO>>

INSPECTION END

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect rear right wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to rear right wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 12.

REPLACE WHEEL SENSOR

1. Replace the rear right wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect electrically-driven intelligent brake unit harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–11” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e3-12 Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E3	12	Wheel sensor		Diagnosis condition	Power switch is ON.
				Signal (terminal)	Rear right wheel sensor signal
				Threshold	When short circuit to power supply side is detected in rear right wheel sensor circuit (signal line).
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Harness or connector

• Rear right wheel sensor

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–12" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E3–12" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL SENSOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the rear right wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the rear right wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–12” detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the rear right wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 6.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–12” detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–12” detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect rear right wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and rear right wheel sensor harness connector.

   • Measurement connector and terminal for power supply circuit

     Electrically-driven intelligent brake unit		Rear right wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	7	B181	1	Existed

   • Measurement connector and terminal for signal circuit

     Electrically-driven intelligent brake unit		Rear right wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	15	B181	2	Existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 10.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect rear right wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–12” detected?

YES>>

GO TO 11.

NO>>

INSPECTION END

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect rear right wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to rear right wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 12.

REPLACE WHEEL SENSOR

1. Replace the rear right wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect electrically-driven intelligent brake unit harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–12” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e3-13 Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E3	13	Wheel sensor		1	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear right wheel sensor signal
					Threshold	When an open circuit is detected in rear right wheel sensor circuit (power supply line).
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear right wheel sensor signal
					Threshold	When short circuit to ground side is detected in rear right wheel sensor circuit (power supply line).
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Harness or connector

• Rear right wheel sensor

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–13" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E3–13" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL SENSOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the rear right wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the rear right wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–13” detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the rear right wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 6.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–13” detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–13” detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect rear right wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and rear right wheel sensor harness connector.

   • Measurement connector and terminal for power supply circuit

     Electrically-driven intelligent brake unit		Rear right wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	7	B181	1	Existed

   • Measurement connector and terminal for signal circuit

     Electrically-driven intelligent brake unit		Rear right wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	15	B181	2	Existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 10.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect rear right wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–13” detected?

YES>>

GO TO 11.

NO>>

INSPECTION END

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect rear right wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to rear right wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 12.

REPLACE WHEEL SENSOR

1. Replace the rear right wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect electrically-driven intelligent brake unit harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–13” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e3-1c Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E3	1C	Wheel sensor		1	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear right wheel sensor signal
					Threshold	When rear right wheel sensor power supply voltage is 6.7 V or less.
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear right wheel sensor signal
					Threshold	When an open circuit is detected in rear right wheel sensor circuit (power supply line).
					Diagnosis delay time	1 second or less
				3	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear right wheel sensor signal
					Threshold	When short circuit to ground side is detected in rear right wheel sensor circuit (power supply line).
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Harness or connector

• Rear right wheel sensor

• Electrically-driven intelligent brake unit

• Electrically-driven intelligent brake unit power supply

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–1C" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E3–1C" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL SENSOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the rear right wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the rear right wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–1C” detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the rear right wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 6.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–1C” detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–1C” detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect rear right wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and rear right wheel sensor harness connector.

   • Measurement connector and terminal for power supply circuit

     Electrically-driven intelligent brake unit		Rear right wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	7	B181	1	Existed

   • Measurement connector and terminal for signal circuit

     Electrically-driven intelligent brake unit		Rear right wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	15	B181	2	Existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 10.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect rear right wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–1C” detected?

YES>>

GO TO 11.

NO>>

INSPECTION END

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect rear right wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to rear right wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 12.

REPLACE WHEEL SENSOR

1. Replace the rear right wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect electrically-driven intelligent brake unit harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–1C” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e3-38 Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C14E3	38	Wheel sensor		1	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear right wheel sensor signal
					Threshold	When a malfunction is detected in information of rear right wheel sensor.
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear right wheel sensor signal
					Threshold	When a malfunction is detected in rotation speed of rear right wheel sensor.
					Diagnosis delay time	1 second or less
				3	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear right wheel sensor signal
					Threshold	When a noise is detected in rear right wheel sensor.
					Diagnosis delay time	1 second or less
				4	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear right wheel sensor signal
					Threshold	When a no signal detected in rear right wheel sensor.
					Diagnosis delay time	1 second or less
				5	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear right wheel sensor signal
					Threshold	When a malfunction is detected in signal of rear right wheel sensor.
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Rear right wheel sensor

• Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–38" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E3–38" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL HUB ASSEMBLY

Check that there is no excessive looseness in rear right wheel hub assembly. Refer to REAR WHEEL HUB : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace the rear right wheel hub assembly. Refer to REAR WHEEL HUB : Removal & Installation. GO TO 4.

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 5.

CHECK TIRE

1. Power switch OFF.

2. Check the rear right tire air pressure, wear and size. Refer to TIRE AIR PRESSURE : Service Data.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Adjust air pressure or replace rear right tire. GO TO 6.

CHECK DATA MONITOR (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Set the vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

8. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear right wheel sensor and the maximum/minimum wheel speed detected by the other rear right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 7.

NO>>

GO TO 8.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–38” detected?

YES>>

GO TO 8.

NO>>

INSPECTION END

CHECK WHEEL SENSOR AND SENSOR ROTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect rear right wheel sensor harness connector.

5. Remove dust and foreign matter adhered to the rear right wheel sensor and rear right sensor rotor with a vacuum dust collector through the rear right wheel sensor mounting hole.

   CAUTION:

   Install rear right wheel sensor with no backlash and float, and tighten the mounting bolt to the specified torque. Refer to REAR WHEEL SENSOR : Exploded View.

>>

GO TO 9.

CHECK WHEEL SENSOR

Check the rear right wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 13.

NO>>

GO TO 10.

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect rear right wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to rear right wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 11.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the rear right wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Set the vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

10. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear right wheel sensor and the maximum/minimum wheel speed detected by the other rear right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 12.

NO>>

GO TO 24.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–38” detected?

YES>>

GO TO 24.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the rear right wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 16.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 14.

CHECK DATA MONITOR (2)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Set the vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

8. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear right wheel sensor and the maximum/minimum wheel speed detected by the other rear right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 15.

NO>>

GO TO 16.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–38” detected?

YES>>

GO TO 16.

NO>>

INSPECTION END

CHECK TERMINAL

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit terminals for damage or loose connection with harness connector.

6. Disconnect rear right wheel sensor harness connector.

7. Check the rear right wheel sensor terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES>>

GO TO 19.

NO>>

Repair / replace harness, connector, or terminal. GO TO 17.

CHECK DATA MONITOR (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect rear right wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Set the vehicle to READY.

9. Erase self-diagnosis result for “BRAKE”.

10. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

    NOTE:

    Set the “Data monitor” recording speed to “10 msec”.

11. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear right wheel sensor and the maximum/minimum wheel speed detected by the other rear right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 18.

NO>>

GO TO 19.

PERFORM SELF-DIAGNOSIS (5)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–38” detected?

YES>>

GO TO 19.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect rear right wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and rear right wheel sensor harness connector.

   Electrically-driven intelligent brake unit		—	Continuity
   Connector	Terminal
   B64	7, 15	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 20.

NO>>

Repair / replace harness or connector. GO TO 20.

CHECK DATA MONITOR (4)

With CONSULT

1. Connect ABS actuator and electric unit (control unit) harness connector.

2. Connect rear right wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Set the vehicle to READY.

9. Erase self-diagnosis result for “BRAKE”.

10. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

    NOTE:

    Set the “Data monitor” recording speed to “10 msec”.

11. Read a value (wheel speed) of all wheel sensor.

    NOTE:

    Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear right wheel sensor and the maximum/minimum wheel speed detected by the other rear right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 21.

NO>>

GO TO 22.

PERFORM SELF-DIAGNOSIS (6)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–38” detected?

YES>>

GO TO 22.

NO>>

INSPECTION END

REPLACE WHEEL SENSOR (2)

With CONSULT

1. Replace the rear right wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Set the vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Select “BRAKE” and “Data monitor”, check “Front LH wheel speed”, “Front RH wheel speed“, “Rear LH wheel speed“, and “Rear RH wheel speed“.

   NOTE:

   Set the “Data monitor” recording speed to “10 msec”.

9. Read a value (wheel speed) of all wheel sensor.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

Note the difference at 50 km/h (31 MPH) between the wheel speed detected by rear right wheel sensor and the maximum/minimum wheel speed detected by the other rear right wheel sensor, is the difference within 5%, respectively?

YES>>

GO TO 23.

NO>>

GO TO 24.

PERFORM SELF-DIAGNOSIS (7)

With CONSULT

1. Stop the Nissan Ariya vehicle.

2. Power switch OFF.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–38” detected?

YES>>

GO TO 24.

NO>>

INSPECTION END

REPLACE SENSOR ROTOR

With CONSULT

1. Replace the rear right sensor rotor. Refer to REAR SENSOR ROTOR : Removal & Installation.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Set the Nissan Ariya vehicle to READY.

8. Drive the vehicle at approximately 50 km/h (31 MPH) or more for approximately 2 minutes.

   NOTE:

   Nissan Ariya Vehicle must be driven after repair or replacement to erase the previous DTCs.

9. Stop the Nissan Ariya vehicle.

10. Power switch OFF and disconnect CONSULT from data link connector.

11. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

12. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

13. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–38” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e3-4a Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E3	4A	Wheel sensor		Diagnosis condition	Power switch is ON.
				Signal (terminal)	Rear right wheel sensor signal
				Threshold	When rear right wheel sensor is installed to wrong position.
				Diagnosis delay time	3 seconds or less.

POSSIBLE CAUSE

• Rear right wheel sensor

• Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–4A" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E3–4A" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

REPLACE WHEEL SENSOR

1. Replace the rear right wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is the display result "B14E3-4A" of “CRNT”?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e3-64 Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E3	64	Wheel sensor		1	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear right wheel sensor signal
					Threshold	When difference between the rear right wheel sensor and the wheel speed other than the rear right wheel sensor is 6 km/h (4 MPH) or more [when driving 100 km/h (62 MPH) or less].
					Diagnosis delay time	18 seconds or more
				2	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear right wheel sensor signal
					Threshold	When difference between the rear right wheel sensor and the wheel speed other than the rear right wheel sensor is 6% or more [when driving 100 km/h (62 MPH) or less].
					Diagnosis delay time	1 second or less
				3	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear right wheel sensor signal
					Threshold	When a malfunction is detected in rotation speed of rear right wheel sensor.
					Diagnosis delay time	1 second or less
				4	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Rear right wheel sensor signal
					Threshold	When rear right wheel sensor is different rotation direction from wheel sensor other than front wheel left.
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Rear right wheel sensor

• Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–64" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E3–64" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL SENSOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the rear right wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the rear right wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–64” detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the rear right wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 6.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–64” detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–64” detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect rear right wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and rear right wheel sensor harness connector.

   • Measurement connector and terminal for power supply circuit

     Electrically-driven intelligent brake unit		Rear right wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	7	B181	1	Existed

   • Measurement connector and terminal for signal circuit

     Electrically-driven intelligent brake unit		Rear right wheel sensor		Continuity
     Connector	Terminal	Connector	Terminal
     B64	15	B181	2	Existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 10.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect rear right wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–64” detected?

YES>>

GO TO 11.

NO>>

INSPECTION END

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect rear right wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to rear right wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 12.

REPLACE WHEEL SENSOR

1. Replace the rear right wheel sensor. Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect electrically-driven intelligent brake unit harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E3–64” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e4-64 Wheel Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E4	64	Wheel sensor		1	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Wheel sensor signal
					Threshold	When difference between the wheel sensors for two or more wheels among all wheel sensors is 6 km/h (4MPH) or more [when driving 100 km/h (62 MPH) or less].
					Diagnosis delay time	18 seconds or more
				2	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Wheel sensor signal
					Threshold	When difference between the wheel sensors for two or more wheels among all wheel sensors is 6 % or more [when driving 100 km/h (62 MPH) or less].
					Diagnosis delay time	1 second or less
				3	Diagnosis condition	Power switch is ON.
					Signal (terminal)	Wheel sensor signal
					Threshold	When two or more wheel sensors out of all wheel sensors rotate in different directions.
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Front left wheel sensor

• Front right wheel sensor

• Rear left wheel sensor

• Rear right wheel sensor

• Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E4–64" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CAUTION:

Never check between wheel sensor harness connector terminals.

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E4–64" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK WHEEL SENSOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the each wheel sensor for damage.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

REPLACE WHEEL SENSOR (1)

With CONSULT

1. Replace the wheel sensor.

   • Front: Refer to FRONT WHEEL SENSOR : Removal & Installation.

   • Rear: Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect 12V battery negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E4–64” detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Check the electrically-driven intelligent brake unit harness connector for disconnection or looseness.

5. Check the each wheel sensor harness connector for disconnection or looseness.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness or connector, securely lock the connector. GO TO 6.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E4–64” detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E4–64” detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK WHEEL SENSOR HARNESS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect each wheel sensor harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and each wheel sensor harness connector.

   • Measurement connector and terminal for power supply circuit

     Electrically-driven intelligent brake unit		Wheel sensor			Continuity
     Connector	Terminal	Connector		Terminal
     B64	4	B176	(Front left)	1	Existed
     	12	E110	(Front right)
     	3	B179	(Rear left)
     	7	B181	(Rear right)

   • Measurement connector and terminal for signal circuit

     Electrically-driven intelligent brake unit		Wheel sensor			Continuity
     Connector	Terminal	Connector		Terminal
     B64	21	B176	(Front left)	2	Existed
     	11	E110	(Front right)
     	19	B179	(Rear left)
     	15	B181	(Rear right)

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 10.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect each wheel sensor harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E4–64” detected?

YES>>

GO TO 11.

NO>>

INSPECTION END

CHECK WHEEL SENSOR OUTPUT SIGNAL

1. Disconnect 12V battery negative terminal.

2. Disconnect electrically-driven intelligent brake unit harness connector.

3. Disconnect wheel sensor harness connector.

4. Connect ABS active wheel sensor tester (SST: J-45741-A) to wheel sensor using appropriate adapter.

5. Turn the ABS active wheel sensor tester power switch ON.

   NOTE:

   The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the battery in the ABS active wheel sensor tester before proceeding.

6. Spin the wheel of the Nissan Ariya vehicle by hand and observe the red SENSOR indicator on the ABS active wheel sensor tester. The red SENSOR indicator should flash ON and OFF to indicate an output signal.

   NOTE:

   If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and retest.

Does the ABS active wheel sensor tester detect a signal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

GO TO 12.

REPLACE WHEEL SENSOR

1. Replace the wheel sensor.

   • Front: Refer to FRONT WHEEL SENSOR : Removal & Installation.

   • Rear: Refer to REAR WHEEL SENSOR : Removal & Installation.

2. Connect electrically-driven intelligent brake unit harness connector.

3. Connect 12V battery negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E4–64” detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B14e5-64 Adas Control Unit System

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E5	64	Brake control system		Diagnosis condition	When power switch is ON.
				Signal (terminal)	Braking force request signal
				Threshold	When a malfunction is detected in braking force request from ADAS control unit 2.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

ADAS control unit 2

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E5-64" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK ADAS CONTROL UNIT 2 SYSTEM

Perform self-diagnosis for “ICC/ADAS 2”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E5-64" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected parts. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E5-64" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness, connector, or terminal. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E5-64" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E5-64" detected?

YES ("B14E5-64")>>

Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

YES (Other than "B14E5-64")>>

Check the DTC. Refer to DTC Index.

NO>>

INSPECTION END

B14e5-92 Adas Control Unit System

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E5	92	Brake control system		Diagnosis condition	When power switch is ON.
				Signal (terminal)	Braking force request signal
				Threshold	When a malfunction is detected in braking force request from ADAS control unit 2.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E5-92" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK ADAS CONTROL UNIT 2 SYSTEM

Perform self-diagnosis for “ICC/ADAS 2”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E5-92" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected parts. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E5-92" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness, connector, or terminal. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E5-92" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E5-92" detected?

YES ("B14E5-92")>>

Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

YES (Other than "B14E5-92")>>

Check the DTC. Refer to DTC Index.

NO>>

INSPECTION END

B14e6-85 Brake Control System

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E6	85	Brake control system		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	Braking force request signal
					Threshold	When a malfunction is detected in braking force request from ABS actuator and electric unit (control unit).
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	Braking force request signal
					Threshold	When a malfunction is detected in braking force request from chassis control module.
					Diagnosis delay time	1 second or less
				3	Diagnosis condition	When power switch is ON.
					Signal (terminal)	Braking force request signal
					Threshold	When a malfunction is detected in braking force request from ADAS control unit 2.
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• ABS actuator and electric unit (control unit)

• ADAS control unit 2

• Chassis control module

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E6-85" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SYSTEM

Perform self-diagnosis for “ABS”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

CHECK ADAS CONTROL UNIT 2 SYSTEM

Perform self-diagnosis for “ICC/ADAS 2”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 3.

CHECK CHASSIS CONTROL MODULE SYSTEM

Perform self-diagnosis for “CHASSIS CONTROL”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 4.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E6-85" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace error-detected parts. GO TO 6.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E6-85" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Repair / replace harness, connector, or terminal. GO TO 8.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E6-85" detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 10.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E6-85" detected?

YES ("B14E6-85")>>

Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

YES (Other than "B14E6-85")>>

Check the DTC. Refer to DTC Index.

NO>>

INSPECTION END

B14e6-92 Brake Control System

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
B14E6	92	Brake control system		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	Braking force request signal
					Threshold	When a malfunction is detected in braking force request from ABS actuator and electric unit (control unit).
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	Braking force request signal
					Threshold	When a malfunction is detected in braking force request from chassis control module.
					Diagnosis delay time	1 second or less
				3	Diagnosis condition	When power switch is ON.
					Signal (terminal)	Braking force request signal
					Threshold	When a malfunction is detected in braking force request from ADAS control unit 2.
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• ABS actuator and electric unit (control unit)

• ADAS control unit 2

• Chassis control module

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “B14E6-92" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SYSTEM

Perform self-diagnosis for “ABS”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

CHECK ADAS CONTROL UNIT 2 SYSTEM

Perform self-diagnosis for “ICC/ADAS 2”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 3.

CHECK CHASSIS CONTROL MODULE SYSTEM

Perform self-diagnosis for “CHASSIS CONTROL”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 4.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E6-92" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace error-detected parts. GO TO 6.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E6-92" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Repair / replace harness, connector, or terminal. GO TO 8.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E6-92" detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 10.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "B14E6-92" detected?

YES ("B14E6-92")>>

Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

YES (Other than "B14E6-92")>>

Check the DTC. Refer to DTC Index.

NO>>

INSPECTION END

C18d0-01 Brake Power Supply Back up Unit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18D0	01	Backup power supply unit		Diagnosis condition	When power switch is ON.
				Signal (terminal)	Brake power supply backup unit signal
				Threshold	When a malfunction is detected in the brake power supply backup unit (overvoltage).
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Brake power supply backup unit

FAIL-SAFE

The following functions are suspended.

Power supply from the brake power supply backup unit

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18D0-01" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D0-01" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect brake power supply backup unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect brake power supply backup unit harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D0-01" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect brake power supply backup unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Disconnect 12V battery cable from negative terminal.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D0-01" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (1)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect brake power supply backup unit harness connector.

6. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	17	B94	1	Existed
   			4	Not existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

7. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	1	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness or connector. GO TO 8.

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (2)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Check the 30A fusible link (#62).

5. Check the continuity and for short circuit between harness connector terminal 6 of brake power supply backup unit and 30A fusible link (#62).

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Perform trouble diagnosis for 12V battery power supply.

CHECK BRAKE POWER SUPPLY BACKUP UNIT COMMUNICATION CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	4*1 5*2	B94	1	Not existed
   			4	Not existed
   			5	Existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	5	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 10.

CHECK BRAKE POWER SUPPLY BACKUP UNIT WAKE UP CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	24	B94	1	Not existed
   			4	Existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	4	Ground	Not existed

Is the inspection result normal?

YES>>

Replace the brake power supply backup unit. Refer to BRAKE POWER SUPPLY BACKUP UNIT : Removal & Installation.

NO>>

Repair / replace harness or connector.

C18d1-09 Brake Power Supply Back up Unit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18D1	09	Backup power supply unit		Diagnosis condition	When power switch is ON.
				Signal (terminal)	Brake power supply backup unit signal
				Threshold	When a malfunction is detected in the brake power supply backup unit (charge circuit).
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Brake power supply backup unit

FAIL-SAFE

The following functions are suspended.

Power supply from the brake power supply backup unit

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18D1-09" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D1-09" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect brake power supply backup unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect brake power supply backup unit harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D1-09" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect brake power supply backup unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Disconnect 12V battery cable from negative terminal.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D1-09" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (1)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect brake power supply backup unit harness connector.

6. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	17	B94	1	Existed
   			4	Not existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

7. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	1	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness or connector. GO TO 8.

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (2)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Check the 30A fusible link (#62).

5. Check the continuity and for short circuit between harness connector terminal 6 of brake power supply backup unit and 30A fusible link (#62).

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Perform trouble diagnosis for 12V battery power supply.

CHECK BRAKE POWER SUPPLY BACKUP UNIT COMMUNICATION CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	4*1 5*2	B94	1	Not existed
   			4	Not existed
   			5	Existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	5	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 10.

CHECK BRAKE POWER SUPPLY BACKUP UNIT WAKE UP CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	24	B94	1	Not existed
   			4	Existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	4	Ground	Not existed

Is the inspection result normal?

YES>>

Replace the brake power supply backup unit. Refer to BRAKE POWER SUPPLY BACKUP UNIT : Removal & Installation.

NO>>

Repair / replace harness or connector.

C18d2-12 Brake Power Supply Back up Unit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18D2	12	Backup power supply unit		Diagnosis condition	When power switch is ON.
				Signal (terminal)	Brake power supply backup unit signal
				Threshold	When a malfunction is detected in the brake power supply backup unit (discharge circuit open).
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Brake power supply backup unit

FAIL-SAFE

The following functions are suspended.

Power supply from the brake power supply backup unit

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18D2-12" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D2-12" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect brake power supply backup unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect brake power supply backup unit harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D2-12" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect brake power supply backup unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Disconnect 12V battery cable from negative terminal.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D2-12" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (1)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect brake power supply backup unit harness connector.

6. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	17	B94	1	Existed
   			4	Not existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

7. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	1	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness or connector. GO TO 8.

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (2)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Check the 30A fusible link (#62).

5. Check the continuity and for short circuit between harness connector terminal 6 of brake power supply backup unit and 30A fusible link (#62).

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Perform trouble diagnosis for 12V battery power supply.

CHECK BRAKE POWER SUPPLY BACKUP UNIT COMMUNICATION CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	4*1 5*2	B94	1	Not existed
   			4	Not existed
   			5	Existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	5	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 10.

CHECK BRAKE POWER SUPPLY BACKUP UNIT WAKE UP CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	24	B94	1	Not existed
   			4	Existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	4	Ground	Not existed

Is the inspection result normal?

YES>>

Replace the brake power supply backup unit. Refer to BRAKE POWER SUPPLY BACKUP UNIT : Removal & Installation.

NO>>

Repair / replace harness or connector.

C18d3-14 Brake Power Supply Back up Unit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18D3	14	Backup power supply unit		Diagnosis condition	When power switch is ON.
				Signal (terminal)	Brake power supply backup unit signal
				Threshold	When a malfunction is detected in the brake power supply backup unit (discharge circuit short).
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Brake power supply backup unit

FAIL-SAFE

The following functions are suspended.

Power supply from the brake power supply backup unit

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18D3-14" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D3-14" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect brake power supply backup unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect brake power supply backup unit harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D3-14" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect brake power supply backup unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Disconnect 12V battery cable from negative terminal.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D3-14" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (1)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect brake power supply backup unit harness connector.

6. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	17	B94	1	Existed
   			4	Not existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

7. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	1	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness or connector. GO TO 8.

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (2)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Check the 30A fusible link (#62).

5. Check the continuity and for short circuit between harness connector terminal 6 of brake power supply backup unit and 30A fusible link (#62).

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Perform trouble diagnosis for 12V battery power supply.

CHECK BRAKE POWER SUPPLY BACKUP UNIT COMMUNICATION CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	4*1 5*2	B94	1	Not existed
   			4	Not existed
   			5	Existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	5	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 10.

CHECK BRAKE POWER SUPPLY BACKUP UNIT WAKE UP CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	24	B94	1	Not existed
   			4	Existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	4	Ground	Not existed

Is the inspection result normal?

YES>>

Replace the brake power supply backup unit. Refer to BRAKE POWER SUPPLY BACKUP UNIT : Removal & Installation.

NO>>

Repair / replace harness or connector.

C18d4-14 Brake Power Supply Back up Unit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18D4	14	Backup power supply unit		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	Brake power supply backup unit signal
					Threshold	When a malfunction is detected in the brake power supply backup unit (internal cell overvoltage).
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	Brake power supply backup unit signal
					Threshold	When a malfunction is detected in the brake power supply backup unit (internal cell short).
					Diagnosis delay time	1 second or less
				3	Diagnosis condition	When power switch is ON.
					Signal (terminal)	Brake power supply backup unit signal
					Threshold	When a malfunction is detected in the brake power supply backup unit (internal cell open).
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Brake power supply backup unit

FAIL-SAFE

The following functions are suspended.

Power supply from the brake power supply backup unit

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18D4-14" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D4-14" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect brake power supply backup unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect brake power supply backup unit harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D4-14" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect brake power supply backup unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Disconnect 12V battery cable from negative terminal.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D4-14" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (1)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect brake power supply backup unit harness connector.

6. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	17	B94	1	Existed
   			4	Not existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

7. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	1	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness or connector. GO TO 8.

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (2)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Check the 30A fusible link (#62).

5. Check the continuity and for short circuit between harness connector terminal 6 of brake power supply backup unit and 30A fusible link (#62).

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Perform trouble diagnosis for 12V battery power supply.

CHECK BRAKE POWER SUPPLY BACKUP UNIT COMMUNICATION CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	4*1 5*2	B94	1	Not existed
   			4	Not existed
   			5	Existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	5	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 10.

CHECK BRAKE POWER SUPPLY BACKUP UNIT WAKE UP CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	24	B94	1	Not existed
   			4	Existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	4	Ground	Not existed

Is the inspection result normal?

YES>>

Replace the brake power supply backup unit. Refer to BRAKE POWER SUPPLY BACKUP UNIT : Removal & Installation.

NO>>

Repair / replace harness or connector.

C18d5-09 Brake Power Supply Back up Unit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18D5	09	Backup power supply unit		Diagnosis condition	When power switch is ON.
				Signal (terminal)	Brake power supply backup unit signal
				Threshold	When a malfunction is detected in the brake power supply backup unit (internal circuit).
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Brake power supply backup unit

FAIL-SAFE

The following functions are suspended.

Power supply from the brake power supply backup unit

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18D5-09" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D5-09" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect brake power supply backup unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect brake power supply backup unit harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D5-09" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect brake power supply backup unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Disconnect 12V battery cable from negative terminal.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D5-09" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (1)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect brake power supply backup unit harness connector.

6. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	17	B94	1	Existed
   			4	Not existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

7. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	1	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness or connector. GO TO 8.

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (2)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Check the 30A fusible link (#62).

5. Check the continuity and for short circuit between harness connector terminal 6 of brake power supply backup unit and 30A fusible link (#62).

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Perform trouble diagnosis for 12V battery power supply.

CHECK BRAKE POWER SUPPLY BACKUP UNIT COMMUNICATION CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	4*1 5*2	B94	1	Not existed
   			4	Not existed
   			5	Existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	5	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 10.

CHECK BRAKE POWER SUPPLY BACKUP UNIT WAKE UP CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	24	B94	1	Not existed
   			4	Existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	4	Ground	Not existed

Is the inspection result normal?

YES>>

Replace the brake power supply backup unit. Refer to BRAKE POWER SUPPLY BACKUP UNIT : Removal & Installation.

NO>>

Repair / replace harness or connector.

C18d6-09 Brake Power Supply Back up Unit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18D6	09	Backup power supply unit		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	Brake power supply backup unit signal
					Threshold	When a malfunction is detected in the brake power supply backup unit (wakeup circuit).
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	Brake power supply backup unit signal
					Threshold	When a malfunction is detected in the brake power supply backup unit (response).
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Brake power supply backup unit

FAIL-SAFE

The following functions are suspended.

Power supply from the brake power supply backup unit

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18D6-09" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D6-09" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect brake power supply backup unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect brake power supply backup unit harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D6-09" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect brake power supply backup unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Disconnect 12V battery cable from negative terminal.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D6-09" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (1)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect brake power supply backup unit harness connector.

6. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	17	B94	1	Existed
   			4	Not existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

7. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	1	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness or connector. GO TO 8.

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (2)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Check the 30A fusible link (#62).

5. Check the continuity and for short circuit between harness connector terminal 6 of brake power supply backup unit and 30A fusible link (#62).

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Perform trouble diagnosis for 12V battery power supply.

CHECK BRAKE POWER SUPPLY BACKUP UNIT COMMUNICATION CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	4*1 5*2	B94	1	Not existed
   			4	Not existed
   			5	Existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	5	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 10.

CHECK BRAKE POWER SUPPLY BACKUP UNIT WAKE UP CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	24	B94	1	Not existed
   			4	Existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	4	Ground	Not existed

Is the inspection result normal?

YES>>

Replace the brake power supply backup unit. Refer to BRAKE POWER SUPPLY BACKUP UNIT : Removal & Installation.

NO>>

Repair / replace harness or connector.

C18d7-09 Brake Power Supply Back up Unit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18D7	09	Backup power supply unit		Diagnosis condition	When power switch is ON.
				Signal (terminal)	Brake power supply backup unit signal
				Threshold	When a malfunction is detected in the brake power supply backup unit (power supply circuit).
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Brake power supply backup unit

• Brake power supply backup unit power supply system

FAIL-SAFE

The following functions are suspended.

Power supply from the brake power supply backup unit

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18D7-09" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D7-09" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect brake power supply backup unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect brake power supply backup unit harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D7-09" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect brake power supply backup unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Disconnect 12V battery cable from negative terminal.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D7-09" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (1)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect brake power supply backup unit harness connector.

6. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	17	B94	1	Existed
   			4	Not existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

7. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	1	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness or connector. GO TO 8.

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (2)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Check the 30A fusible link (#62).

5. Check the continuity and for short circuit between harness connector terminal 6 of brake power supply backup unit and 30A fusible link (#62).

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Perform trouble diagnosis for 12V battery power supply.

CHECK BRAKE POWER SUPPLY BACKUP UNIT COMMUNICATION CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	4*1 5*2	B94	1	Not existed
   			4	Not existed
   			5	Existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	5	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 10.

CHECK BRAKE POWER SUPPLY BACKUP UNIT WAKE UP CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	24	B94	1	Not existed
   			4	Existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	4	Ground	Not existed

Is the inspection result normal?

YES>>

Replace the brake power supply backup unit. Refer to BRAKE POWER SUPPLY BACKUP UNIT : Removal & Installation.

NO>>

Repair / replace harness or connector.

C18d8-09 Brake Power Supply Back up Unit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18D8	09	Backup power supply unit		Diagnosis condition	When power switch is ON.
				Signal (terminal)	Brake power supply backup unit signal
				Threshold	When a malfunction is detected in the brake power supply backup unit (internal).
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Brake power supply backup unit

FAIL-SAFE

The following functions are suspended.

Power supply from the brake power supply backup unit

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18D8-09" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D8-09" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect brake power supply backup unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect brake power supply backup unit harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D8-09" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect brake power supply backup unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Disconnect 12V battery cable from negative terminal.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D8-09" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (1)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect brake power supply backup unit harness connector.

6. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	17	B94	1	Existed
   			4	Not existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

7. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	1	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness or connector. GO TO 8.

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (2)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Check the 30A fusible link (#62).

5. Check the continuity and for short circuit between harness connector terminal 6 of brake power supply backup unit and 30A fusible link (#62).

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Perform trouble diagnosis for 12V battery power supply.

CHECK BRAKE POWER SUPPLY BACKUP UNIT COMMUNICATION CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	4*1 5*2	B94	1	Not existed
   			4	Not existed
   			5	Existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	5	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 10.

CHECK BRAKE POWER SUPPLY BACKUP UNIT WAKE UP CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	24	B94	1	Not existed
   			4	Existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	4	Ground	Not existed

Is the inspection result normal?

YES>>

Replace the brake power supply backup unit. Refer to BRAKE POWER SUPPLY BACKUP UNIT : Removal & Installation.

NO>>

Repair / replace harness or connector.

C18d9-09 Brake Power Supply Back up Unit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18D9	09	Backup power supply unit		Diagnosis condition	When power switch is ON.
				Signal (terminal)	Brake power supply backup unit signal
				Threshold	When a malfunction is detected in the brake power supply backup unit (insulation).
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Brake power supply backup unit

FAIL-SAFE

The following functions are suspended.

Power supply from the brake power supply backup unit

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18D9-09" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D9-09" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect brake power supply backup unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect brake power supply backup unit harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D9-09" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect brake power supply backup unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Disconnect 12V battery cable from negative terminal.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18D9-09" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (1)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect brake power supply backup unit harness connector.

6. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	17	B94	1	Existed
   			4	Not existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

7. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	1	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness or connector. GO TO 8.

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (2)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Check the 30A fusible link (#62).

5. Check the continuity and for short circuit between harness connector terminal 6 of brake power supply backup unit and 30A fusible link (#62).

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Perform trouble diagnosis for 12V battery power supply.

CHECK BRAKE POWER SUPPLY BACKUP UNIT COMMUNICATION CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	4*1 5*2	B94	1	Not existed
   			4	Not existed
   			5	Existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	5	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 10.

CHECK BRAKE POWER SUPPLY BACKUP UNIT WAKE UP CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	24	B94	1	Not existed
   			4	Existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	4	Ground	Not existed

Is the inspection result normal?

YES>>

Replace the brake power supply backup unit. Refer to BRAKE POWER SUPPLY BACKUP UNIT : Removal & Installation.

NO>>

Repair / replace harness or connector.

C18da-09 Brake Power Supply Back up Unit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18DA	09	Backup power supply unit		Diagnosis condition	When power switch is ON.
				Signal (terminal)	Brake power supply backup unit signal
				Threshold	When a malfunction is detected in the brake power supply backup unit (charge control).
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Brake power supply backup unit

FAIL-SAFE

The following functions are suspended.

Power supply from the brake power supply backup unit

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18DA-09" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18DA-09" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect brake power supply backup unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect brake power supply backup unit harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18DA-09" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect brake power supply backup unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Disconnect 12V battery cable from negative terminal.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18DA-09" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (1)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect brake power supply backup unit harness connector.

6. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	17	B94	1	Existed
   			4	Not existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

7. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	1	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness or connector. GO TO 8.

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (2)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Check the 30A fusible link (#62).

5. Check the continuity and for short circuit between harness connector terminal 6 of brake power supply backup unit and 30A fusible link (#62).

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Perform trouble diagnosis for 12V battery power supply.

CHECK BRAKE POWER SUPPLY BACKUP UNIT COMMUNICATION CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	4*1 5*2	B94	1	Not existed
   			4	Not existed
   			5	Existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	5	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 10.

CHECK BRAKE POWER SUPPLY BACKUP UNIT WAKE UP CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	24	B94	1	Not existed
   			4	Existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	4	Ground	Not existed

Is the inspection result normal?

YES>>

Replace the brake power supply backup unit. Refer to BRAKE POWER SUPPLY BACKUP UNIT : Removal & Installation.

NO>>

Repair / replace harness or connector.

C18db-09 Brake Power Supply Back up Unit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18DB	09	Backup power supply unit		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	Brake power supply backup unit signal
					Threshold	When a malfunction is detected in the brake power supply backup unit (thermistor short).
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	Brake power supply backup unit signal
					Threshold	When a malfunction is detected in the brake power supply backup unit (thermistor open).
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Brake power supply backup unit

FAIL-SAFE

The following functions are suspended.

Power supply from the brake power supply backup unit

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18DB-09" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18DB-09" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect brake power supply backup unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect brake power supply backup unit harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18DB-09" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect brake power supply backup unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Disconnect 12V battery cable from negative terminal.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18DB-09" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (1)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect brake power supply backup unit harness connector.

6. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	17	B94	1	Existed
   			4	Not existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

7. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	1	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness or connector. GO TO 8.

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (2)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Check the 30A fusible link (#62).

5. Check the continuity and for short circuit between harness connector terminal 6 of brake power supply backup unit and 30A fusible link (#62).

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Perform trouble diagnosis for 12V battery power supply.

CHECK BRAKE POWER SUPPLY BACKUP UNIT COMMUNICATION CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	4*1 5*2	B94	1	Not existed
   			4	Not existed
   			5	Existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	5	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 10.

CHECK BRAKE POWER SUPPLY BACKUP UNIT WAKE UP CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	24	B94	1	Not existed
   			4	Existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	4	Ground	Not existed

Is the inspection result normal?

YES>>

Replace the brake power supply backup unit. Refer to BRAKE POWER SUPPLY BACKUP UNIT : Removal & Installation.

NO>>

Repair / replace harness or connector.

C18dc-09 Brake Power Supply Back up Unit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18DC	09	Backup power supply unit		Diagnosis condition	When power switch is ON.
				Signal (terminal)	Brake power supply backup unit signal
				Threshold	When a malfunction is detected in the brake power supply backup unit (capacitor).
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Brake power supply backup unit

FAIL-SAFE

The following functions are suspended.

Power supply from the brake power supply backup unit

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18DC-09" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18DC-09" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect brake power supply backup unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect brake power supply backup unit harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18DC-09" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect brake power supply backup unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Disconnect 12V battery cable from negative terminal.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18DC-09" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (1)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect brake power supply backup unit harness connector.

6. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	17	B94	1	Existed
   			4	Not existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

7. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	1	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness or connector. GO TO 8.

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (2)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Check the 30A fusible link (#62).

5. Check the continuity and for short circuit between harness connector terminal 6 of brake power supply backup unit and 30A fusible link (#62).

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Perform trouble diagnosis for 12V battery power supply.

CHECK BRAKE POWER SUPPLY BACKUP UNIT COMMUNICATION CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	4*1 5*2	B94	1	Not existed
   			4	Not existed
   			5	Existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	5	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 10.

CHECK BRAKE POWER SUPPLY BACKUP UNIT WAKE UP CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	24	B94	1	Not existed
   			4	Existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	4	Ground	Not existed

Is the inspection result normal?

YES>>

Replace the brake power supply backup unit. Refer to BRAKE POWER SUPPLY BACKUP UNIT : Removal & Installation.

NO>>

Repair / replace harness or connector.

C18dd-09 Brake Power Supply Back up Unit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18DD	09	Backup power supply unit		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	Brake power supply backup unit signal
					Threshold	When a malfunction is detected in the brake power supply backup unit (internal circuit short).
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	Brake power supply backup unit signal
					Threshold	When a malfunction is detected in the brake power supply backup unit (internal circuit open).
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Brake power supply backup unit

FAIL-SAFE

The following functions are suspended.

Power supply from the brake power supply backup unit

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18DD-09" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18DD-09" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect brake power supply backup unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect brake power supply backup unit harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18DD-09" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect brake power supply backup unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Disconnect 12V battery cable from negative terminal.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18DD-09" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (1)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect brake power supply backup unit harness connector.

6. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	17	B94	1	Existed
   			4	Not existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

7. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	1	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness or connector. GO TO 8.

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (2)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Check the 30A fusible link (#62).

5. Check the continuity and for short circuit between harness connector terminal 6 of brake power supply backup unit and 30A fusible link (#62).

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Perform trouble diagnosis for 12V battery power supply.

CHECK BRAKE POWER SUPPLY BACKUP UNIT COMMUNICATION CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	4*1 5*2	B94	1	Not existed
   			4	Not existed
   			5	Existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	5	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 10.

CHECK BRAKE POWER SUPPLY BACKUP UNIT WAKE UP CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	24	B94	1	Not existed
   			4	Existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	4	Ground	Not existed

Is the inspection result normal?

YES>>

Replace the brake power supply backup unit. Refer to BRAKE POWER SUPPLY BACKUP UNIT : Removal & Installation.

NO>>

Repair / replace harness or connector.

C18de-82 Brake Power Supply Back up Unit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18DE	82	Backup power supply unit communication		Diagnosis condition	When power switch is ON.
				Signal (terminal)	Brake power supply backup unit signal
				Threshold	When a malfunction is detected in the brake power supply backup unit (communication).
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Harness or connector

• Brake power supply backup unit

FAIL-SAFE

The following functions are suspended.

Power supply from the brake power supply backup unit

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18DE-82" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18DE-82" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect brake power supply backup unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect brake power supply backup unit harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18DE-82" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect brake power supply backup unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Disconnect 12V battery cable from negative terminal.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18DE-82" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (1)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect brake power supply backup unit harness connector.

6. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	17	B94	1	Existed
   			4	Not existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

7. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	1	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness or connector. GO TO 8.

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (2)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Check the 30A fusible link (#62).

5. Check the continuity and for short circuit between harness connector terminal 6 of brake power supply backup unit and 30A fusible link (#62).

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Perform trouble diagnosis for 12V battery power supply.

CHECK BRAKE POWER SUPPLY BACKUP UNIT COMMUNICATION CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	4*1 5*2	B94	1	Not existed
   			4	Not existed
   			5	Existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	5	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 10.

CHECK BRAKE POWER SUPPLY BACKUP UNIT WAKE UP CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	24	B94	1	Not existed
   			4	Existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	4	Ground	Not existed

Is the inspection result normal?

YES>>

Replace the brake power supply backup unit. Refer to BRAKE POWER SUPPLY BACKUP UNIT : Removal & Installation.

NO>>

Repair / replace harness or connector.

C18de-83 Brake Power Supply Back up Unit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18DE	83	Backup power supply unit communication		Diagnosis condition	When power switch is ON.
				Signal (terminal)	Brake power supply backup unit signal
				Threshold	When a malfunction is detected in the brake power supply backup unit (communication).
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Fuse

• Brake power supply backup unit

FAIL-SAFE

The following functions are suspended.

Power supply from the brake power supply backup unit

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18DE-83" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18DE-83" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect brake power supply backup unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect brake power supply backup unit harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18DE-83" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect brake power supply backup unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Disconnect 12V battery cable from negative terminal.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18DE-83" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (1)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect brake power supply backup unit harness connector.

6. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	17	B94	1	Existed
   			4	Not existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

7. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	1	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness or connector. GO TO 8.

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (2)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Check the 30A fusible link (#62).

5. Check the continuity and for short circuit between harness connector terminal 6 of brake power supply backup unit and 30A fusible link (#62).

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Perform trouble diagnosis for 12V battery power supply.

CHECK BRAKE POWER SUPPLY BACKUP UNIT COMMUNICATION CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	4*1 5*2	B94	1	Not existed
   			4	Not existed
   			5	Existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	5	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 10.

CHECK BRAKE POWER SUPPLY BACKUP UNIT WAKE UP CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	24	B94	1	Not existed
   			4	Existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	4	Ground	Not existed

Is the inspection result normal?

YES>>

Replace the brake power supply backup unit. Refer to BRAKE POWER SUPPLY BACKUP UNIT : Removal & Installation.

NO>>

Repair / replace harness or connector.

C18de-87 Brake Power Supply Back up Unit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18DE	87	Backup power supply unit communication		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	Brake power supply backup unit signal
					Threshold	When a malfunction is detected in the brake power supply backup unit (self-diagnosis).
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	Brake power supply backup unit signal
					Threshold	When a malfunction is detected in the brake power supply backup unit (communication).
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Fuse

• Brake power supply backup unit

FAIL-SAFE

The following functions are suspended.

Power supply from the brake power supply backup unit

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18DE-87" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18DE-87" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect brake power supply backup unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect brake power supply backup unit harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18DE-87" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect brake power supply backup unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Disconnect 12V battery cable from negative terminal.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18DE-87" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (1)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect brake power supply backup unit harness connector.

6. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	17	B94	1	Existed
   			4	Not existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

7. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	1	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness or connector. GO TO 8.

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (2)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Check the 30A fusible link (#62).

5. Check the continuity and for short circuit between harness connector terminal 6 of brake power supply backup unit and 30A fusible link (#62).

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Perform trouble diagnosis for 12V battery power supply.

CHECK BRAKE POWER SUPPLY BACKUP UNIT COMMUNICATION CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	4*1 5*2	B94	1	Not existed
   			4	Not existed
   			5	Existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	5	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 10.

CHECK BRAKE POWER SUPPLY BACKUP UNIT WAKE UP CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	24	B94	1	Not existed
   			4	Existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	4	Ground	Not existed

Is the inspection result normal?

YES>>

Replace the brake power supply backup unit. Refer to BRAKE POWER SUPPLY BACKUP UNIT : Removal & Installation.

NO>>

Repair / replace harness or connector.

C18e1-04 Motor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E1	04	Motor		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When a malfunction is detected in motor.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E1-04" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E1-04" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E1-04" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E1-04" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18e1-07 Motor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E1	07	Motor		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When a malfunction is detected in motor speed.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E1-07" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E1-07" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E1-07" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E1-07" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18e1-18 Motor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E1	18	Motor		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When a malfunction is detected in motor.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Electrically-driven intelligent brake unit

• Electrically-driven intelligent brake unit power supply system

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E1-18" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E1-18" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E1-18" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E1-18" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18e1-19 Motor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E1	19	Motor		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When the voltage difference between both ends of the motor resistor is 2.0 V or more.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Electrically-driven intelligent brake unit

• Electrically-driven intelligent brake unit power supply system

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E1-19" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E1-19" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E1-19" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E1-19" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18e1-49 Motor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E1	49	Motor		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When a malfunction is detected in motor current.
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When the motor position is not detected.
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Electrically-driven intelligent brake unit

• Electrically-driven intelligent brake unit power supply system

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E1-49" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E1-49" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E1-49" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E1-49" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18e1-4b Motor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E1	4B	Motor		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When a malfunction is detected in motor temperature.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E1-4B" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E1-4B" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E1-4B" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E1-4B" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18e3-86 Abs Actuator and Electric Unit (control Unit) System

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E3	86	VDC system		Diagnosis condition	When power switch is ON.
				Signal (terminal)	CAN communication signal
				Threshold	When ABS actuator and electric unit (control unit) transmission signal is malfunction.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

ABS actuator and electric unit (control unit)

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E3-86" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SYSTEM

Perform self-diagnosis for “ABS”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E3-86" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected parts. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E3-86" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness, connector, or terminal. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E3-86" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E3-86" detected?

YES ("C18E3-86")>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

YES (Other than "C18E3-86")>>

Check the DTC. Refer to DTC Index.

NO>>

INSPECTION END

C18e4-88 Can Comm Circuit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E4	88	CAN communication system		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When electrically-driven intelligent brake unit CAN communication signal transmission is malfunction.
					Diagnosis delay time	2 seconds or more
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When electrically-driven intelligent brake unit CAN communication signal reception is malfunction.
					Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

• Harness or connector

• CAN communication line

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E4-88" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair / replace harness, connector, or terminal. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E4-88" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E4-88" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18e5-88 Can Comm Circuit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E5	88	CAN communication system		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When electrically-driven intelligent brake unit CAN communication signal transmission is malfunction.
					Diagnosis delay time	2 seconds or more
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When electrically-driven intelligent brake unit CAN communication signal reception is malfunction.
					Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

• Harness or connector

• CAN communication line

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E5-88" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair / replace harness, connector, or terminal. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E5-88" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E5-88" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18e6-49 Can Comm System

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E6	49	CAN communication system		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When electrically-driven intelligent brake unit CAN communication signal transmission is malfunction.
					Diagnosis delay time	2 seconds or more
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When electrically-driven intelligent brake unit CAN communication signal reception is malfunction.
					Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

• Harness or connector

• CAN communication line

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control　unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E6-49" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair / replace harness, connector, or terminal. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E6-49" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E6-49" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18e7-13 Power Supply Circuit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E7	13	Power supply system		Diagnosis condition	When power switch is ON.
				Signal (terminal)	Power switch ON signal
				Threshold	When a malfunction is detected in power switch ON signal.
				Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

• BCM

• Ignition switch

• Electrically-driven intelligent brake unit

• Electrically-driven intelligent brake unit power supply system

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E7-13" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK BCM SYSTEM

Perform self-diagnosis for “BCM”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E7-13" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected parts. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E7-13" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness, connector, or terminal. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E7-13" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E7-13" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18e7-16 Power Supply Circuit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E7	16	Power supply system		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When electrically-driven intelligent brake unit power supply voltage is 6.0 V ore less.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Electrically-driven intelligent brake unit

• Electrically-driven intelligent brake unit power supply system

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E7-16" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK BCM SYSTEM

Perform self-diagnosis for “BCM”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E7-16" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected parts. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E7-16" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness, connector, or terminal. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E7-16" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E7-16" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18e7-17 Power Supply Circuit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E7	17	Power supply system		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When electrically-driven intelligent brake unit power supply voltage is 27.5 V or more.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Electrically-driven intelligent brake unit

• Electrically-driven intelligent brake unit power supply system

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E7-17" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK BCM SYSTEM

Perform self-diagnosis for “BCM”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E7-17" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected parts. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E7-17" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness, connector, or terminal. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E7-17" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E7-17" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18e7-1c Power Supply Circuit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E7	1C	Power supply system		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When electrically-driven intelligent brake unit power supply voltage is less than 9.3 V.
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When electrically-driven intelligent brake unit power supply voltage is less than 7.5 V.
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Electrically-driven intelligent brake unit

• Electrically-driven intelligent brake unit power supply system

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E7-1C" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK BCM SYSTEM

Perform self-diagnosis for “BCM”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E7-1C" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected parts. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E7-1C" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness, connector, or terminal. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E7-1C" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E7-1C" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18e9-01 Control Module

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E9	01	Control module		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When an internal malfunction is detected in electrically-driven intelligent brake unit (microcomputer).
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E9-01" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-01" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-01" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-01" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18e9-04 Control Module

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E9	04	Control module		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When an internal malfunction is detected in electrically-driven intelligent brake unit (software).
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E9-04" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-04" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-04" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-04" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18e9-44 Control Module

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E9	44	Control module		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When an internal malfunction is detected in electrically-driven intelligent brake unit (RAM).
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E9-44" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-44" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-44" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-44" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18e9-45 Control Module

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E9	45	Control module		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When an internal malfunction is detected in electrically-driven intelligent brake unit (ROM).
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E9-45" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-45" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-45" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-45" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18e9-46 Control Module

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E9	46	Control module		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When an internal malfunction is detected in electrically-driven intelligent brake unit (motor control).
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When an internal malfunction is detected in electrically-driven intelligent brake unit (memory).
					Diagnosis delay time	1 second or less
				3	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When an internal malfunction is detected in electrically-driven intelligent brake unit (rotor position control).
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E9-46" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-46" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-46" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-46" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18e9-47 Control Module

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E9	47	Control module		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When an internal malfunction is detected in electrically-driven intelligent brake unit (processor).
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When an internal malfunction is detected in electrically-driven intelligent brake unit (fail-safe control).
					Diagnosis delay time	1 second or less
				3	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When an internal malfunction is detected in electrically-driven intelligent brake unit (internal communication).
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E9-47" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-47" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-47" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-47" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18e9-48 Control Module

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E9	48	Control module		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When an internal malfunction is detected in electrically-driven intelligent brake unit (microcomputer).
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E9-48" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-48" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-48" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-48" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18e9-49 Control Module

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E9	49	Control module		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When an internal malfunction is detected in electrically-driven intelligent brake unit (initialize).
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E9-49" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-49" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-49" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-49" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18e9-96 Control Module

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18E9	96	Control module		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When an internal malfunction is detected in electrically-driven intelligent brake unit (AD converter).
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18E9-96" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-96" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-96" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18E9-96" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18ea-01 Abs Actuator and Electric Unit (control Unit) System

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18EA	01	VDC system		Diagnosis condition	When power switch is ON.
				Signal (terminal)	CAN communication signal
				Threshold	When brake fluid pressure signal from ABS actuator and electric unit (control unit) is malfunction.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

ABS actuator and electric unit (control unit)

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18EA-01" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SYSTEM

Perform self-diagnosis for “ABS”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EA-01" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected parts. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EA-01" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness, connector, or terminal. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EA-01" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EA-01" detected?

YES ("C18EA-01")>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

YES (Other than "C18EA-01")>>

Check the DTC. Refer to DTC Index.

NO>>

INSPECTION END

C18eb-01 Brake Power Supply Back up Unit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18EB	01	Backup power supply unit		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	Brake power supply backup unit signal
					Threshold	When brake power supply backup unit power supply voltage is 7.5 V or less.
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	Brake power supply backup unit signal
					Threshold	When brake power supply backup unit power supply voltage is 9.0 V or less (when brake operation is not request).
					Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

• Brake power supply backup unit

• Brake power supply backup unit power supply system

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18EB-01" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EB-01" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect brake power supply backup unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect brake power supply backup unit harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EB-01" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect brake power supply backup unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Disconnect 12V battery cable from negative terminal.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EB-01" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (1)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Disconnect brake power supply backup unit harness connector.

6. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B642	17	B94	1	Existed
   			4	Not existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

7. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	1	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness or connector. GO TO 8.

CHECK BRAKE POWER SUPPLY BACKUP UNIT POWER SUPPLY CIRCUIT (2)

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Check the 30A fusible link (#62).

5. Check the continuity and for short circuit between harness connector terminal 6 of brake power supply backup unit and 30A fusible link (#62).

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Perform trouble diagnosis for 12V battery power supply.

CHECK BRAKE POWER SUPPLY BACKUP UNIT COMMUNICATION CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B642	4*1 5*2	B94	1	Not existed
   			4	Not existed
   			5	Existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	5	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 10.

CHECK BRAKE POWER SUPPLY BACKUP UNIT WAKE UP CIRCUIT

1. Check the continuity between electrically-driven intelligent brake unit and brake power supply backup unit.

   Electrically-driven intelligent brake unit		Brake power supply backup unit		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B642	24	B94	1	Not existed
   			4	Existed
   			5	Not existed
   			6	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

2. Check the continuity between brake power supply backup unit and ground.

   Brake power supply backup unit		—	Continuity
   Connector	Terminal
   B94	4	Ground	Not existed

Is the inspection result normal?

YES>>

Replace the brake power supply backup unit. Refer to BRAKE POWER SUPPLY BACKUP UNIT : Removal & Installation.

NO>>

Repair / replace harness or connector.

C18ec-01 Stroke Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18EC	01	Stroke sensor		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When a malfunction is detected in stroke sensor output.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18EC-01" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-01" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect stroke sensor harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect stroke sensor harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-01" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect stroke sensor harness connector.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Disconnect 12V battery cable from negative terminal.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-01" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE PEDAL HEIGHT

Check each brake pedal height. Refer to BRAKE PEDAL : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Adjust each height. Refer to BRAKE PEDAL : Periodic Maintenance Operation. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-01" detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK STROKE SENSOR CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and electrically-driven intelligent brake unit.

   Stroke sensor		Electrically-driven intelligent brake unit		Continuity
   Connector	Terminal	Connector	Terminal
   B39	3	B63*1 B64*2	23	Existed
   	3		2	Not existed
   	3		22	Not existed
   	3		8	Not existed
   	2		23	Not existed
   	2		2	Existed
   	2		22	Not existed
   	2		8	Not existed
   	1		23	Not existed
   	1		2	Not existed
   	1		22	Existed
   	1		8	Not existed
   	4		23	Not existed
   	4		2	Not existed
   	4		22	Not existed
   	4		8	Existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 12.

CHECK STROKE SENSOR POWER SUPPLY

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Check the stroke sensor power voltage.

   +		—	Voltage
   Stroke sensor
   Connector	Terminal
   B39	2	Ground	4.8 - 5.15 V

Is the inspection result normal?

YES>>

GO TO 11.

NO>>

Repair / replace error-detected parts. GO TO 11.

CHECK STROKE SENSOR GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and ground.

   Stroke sensor		—	Continuity
   Connector	Terminal
   B39	4	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 12.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-01" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18ec-04 Stroke Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18EC	04	Stroke sensor		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When a malfunction is detected in stroke sensor output.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18EC-04" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-04" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect stroke sensor harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect stroke sensor harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-04" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect stroke sensor harness connector.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Disconnect 12V battery cable from negative terminal.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-04" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE PEDAL HEIGHT

Check each brake pedal height. Refer to BRAKE PEDAL : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Adjust each height. Refer to BRAKE PEDAL : Periodic Maintenance Operation. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-04" detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK STROKE SENSOR CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and electrically-driven intelligent brake unit.

   Stroke sensor		Electrically-driven intelligent brake unit		Continuity
   Connector	Terminal	Connector	Terminal
   B39	3	B63*1 B64*2	23	Existed
   	3		2	Not existed
   	3		22	Not existed
   	3		8	Not existed
   	2		23	Not existed
   	2		2	Existed
   	2		22	Not existed
   	2		8	Not existed
   	1		23	Not existed
   	1		2	Not existed
   	1		22	Existed
   	1		8	Not existed
   	4		23	Not existed
   	4		2	Not existed
   	4		22	Not existed
   	4		8	Existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 12.

CHECK STROKE SENSOR POWER SUPPLY

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Check the stroke sensor power voltage.

   +		—	Voltage
   Stroke sensor
   Connector	Terminal
   B39	2	Ground	4.8 - 5.15 V

Is the inspection result normal?

YES>>

GO TO 11.

NO>>

Repair / replace error-detected parts. GO TO 11.

CHECK STROKE SENSOR GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and ground.

   Stroke sensor		—	Continuity
   Connector	Terminal
   B39	4	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 12.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-04" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18ec-11 Stroke Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18EC	11	Stroke sensor		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When a malfunction is detected in stroke sensor internal circuit.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18EC-11" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-11" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect stroke sensor harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect stroke sensor harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-11" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect stroke sensor harness connector.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Disconnect 12V battery cable from negative terminal.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-11" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE PEDAL HEIGHT

Check each brake pedal height. Refer to BRAKE PEDAL : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Adjust each height. Refer to BRAKE PEDAL : Periodic Maintenance Operation. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-11" detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK STROKE SENSOR CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and electrically-driven intelligent brake unit.

   Stroke sensor		Electrically-driven intelligent brake unit		Continuity
   Connector	Terminal	Connector	Terminal
   B39	3	B63*1 B64*2	23	Existed
   	3		2	Not existed
   	3		22	Not existed
   	3		8	Not existed
   	2		23	Not existed
   	2		2	Existed
   	2		22	Not existed
   	2		8	Not existed
   	1		23	Not existed
   	1		2	Not existed
   	1		22	Existed
   	1		8	Not existed
   	4		23	Not existed
   	4		2	Not existed
   	4		22	Not existed
   	4		8	Existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 12.

CHECK STROKE SENSOR POWER SUPPLY

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Check the stroke sensor power voltage.

   +		—	Voltage
   Stroke sensor
   Connector	Terminal
   B39	2	Ground	4.8 - 5.15 V

Is the inspection result normal?

YES>>

GO TO 11.

NO>>

Repair / replace error-detected parts. GO TO 11.

CHECK STROKE SENSOR GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and ground.

   Stroke sensor		—	Continuity
   Connector	Terminal
   B39	4	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 12.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-11" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18ec-12 Stroke Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18EC	12	Stroke sensor		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When a malfunction is detected in stroke sensor internal circuit.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18EC-12" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-12" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect stroke sensor harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect stroke sensor harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-12" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect stroke sensor harness connector.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Disconnect 12V battery cable from negative terminal.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-12" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE PEDAL HEIGHT

Check each brake pedal height. Refer to BRAKE PEDAL : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Adjust each height. Refer to BRAKE PEDAL : Periodic Maintenance Operation. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-12" detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK STROKE SENSOR CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and electrically-driven intelligent brake unit.

   Stroke sensor		Electrically-driven intelligent brake unit		Continuity
   Connector	Terminal	Connector	Terminal
   B39	3	B63*1 B64*2	23	Existed
   	3		2	Not existed
   	3		22	Not existed
   	3		8	Not existed
   	2		23	Not existed
   	2		2	Existed
   	2		22	Not existed
   	2		8	Not existed
   	1		23	Not existed
   	1		2	Not existed
   	1		22	Existed
   	1		8	Not existed
   	4		23	Not existed
   	4		2	Not existed
   	4		22	Not existed
   	4		8	Existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 12.

CHECK STROKE SENSOR POWER SUPPLY

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Check the stroke sensor power voltage.

   +		—	Voltage
   Stroke sensor
   Connector	Terminal
   B39	2	Ground	4.8 - 5.15 V

Is the inspection result normal?

YES>>

GO TO 11.

NO>>

Repair / replace error-detected parts. GO TO 11.

CHECK STROKE SENSOR GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and ground.

   Stroke sensor		—	Continuity
   Connector	Terminal
   B39	4	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 12.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-12" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18ec-13 Stroke Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18EC	13	Stroke sensor		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When stroke sensor power supply is 4.8 V or less.
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When stroke sensor power supply is 5.18 V or more.
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Electrically-driven intelligent brake unit

• Electrically-driven intelligent brake unit power supply system

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18EC-13" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-13" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect stroke sensor harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect stroke sensor harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-13" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect stroke sensor harness connector.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Disconnect 12V battery cable from negative terminal.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-13" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE PEDAL HEIGHT

Check each brake pedal height. Refer to BRAKE PEDAL : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Adjust each height. Refer to BRAKE PEDAL : Periodic Maintenance Operation. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-13" detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK STROKE SENSOR CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and electrically-driven intelligent brake unit.

   Stroke sensor		Electrically-driven intelligent brake unit		Continuity
   Connector	Terminal	Connector	Terminal
   B39	3	B63*1 B64*2	23	Existed
   	3		2	Not existed
   	3		22	Not existed
   	3		8	Not existed
   	2		23	Not existed
   	2		2	Existed
   	2		22	Not existed
   	2		8	Not existed
   	1		23	Not existed
   	1		2	Not existed
   	1		22	Existed
   	1		8	Not existed
   	4		23	Not existed
   	4		2	Not existed
   	4		22	Not existed
   	4		8	Existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 12.

CHECK STROKE SENSOR POWER SUPPLY

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Check the stroke sensor power voltage.

   +		—	Voltage
   Stroke sensor
   Connector	Terminal
   B39	2	Ground	4.8 - 5.15 V

Is the inspection result normal?

YES>>

GO TO 11.

NO>>

Repair / replace error-detected parts. GO TO 11.

CHECK STROKE SENSOR GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and ground.

   Stroke sensor		—	Continuity
   Connector	Terminal
   B39	4	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 12.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-13" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18ec-14 Stroke Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18EC	14	Stroke sensor		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When a malfunction is detected in stroke sensor internal circuit.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18EC-14" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-14" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect stroke sensor harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect stroke sensor harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-14" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect stroke sensor harness connector.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Disconnect 12V battery cable from negative terminal.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-14" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE PEDAL HEIGHT

Check each brake pedal height. Refer to BRAKE PEDAL : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Adjust each height. Refer to BRAKE PEDAL : Periodic Maintenance Operation. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-14" detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK STROKE SENSOR CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and electrically-driven intelligent brake unit.

   Stroke sensor		Electrically-driven intelligent brake unit		Continuity
   Connector	Terminal	Connector	Terminal
   B39	3	B63*1 B64*2	23	Existed
   	3		2	Not existed
   	3		22	Not existed
   	3		8	Not existed
   	2		23	Not existed
   	2		2	Existed
   	2		22	Not existed
   	2		8	Not existed
   	1		23	Not existed
   	1		2	Not existed
   	1		22	Existed
   	1		8	Not existed
   	4		23	Not existed
   	4		2	Not existed
   	4		22	Not existed
   	4		8	Existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 12.

CHECK STROKE SENSOR POWER SUPPLY

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Check the stroke sensor power voltage.

   +		—	Voltage
   Stroke sensor
   Connector	Terminal
   B39	2	Ground	4.8 - 5.15 V

Is the inspection result normal?

YES>>

GO TO 11.

NO>>

Repair / replace error-detected parts. GO TO 11.

CHECK STROKE SENSOR GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and ground.

   Stroke sensor		—	Continuity
   Connector	Terminal
   B39	4	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 12.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-14" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18ec-15 Stroke Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18EC	15	Stroke sensor		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When a malfunction is detected in stroke sensor internal circuit.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18EC-15" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-15" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect stroke sensor harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect stroke sensor harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-15" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect stroke sensor harness connector.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Disconnect 12V battery cable from negative terminal.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-15" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE PEDAL HEIGHT

Check each brake pedal height. Refer to BRAKE PEDAL : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Adjust each height. Refer to BRAKE PEDAL : Periodic Maintenance Operation. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-15" detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK STROKE SENSOR CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and electrically-driven intelligent brake unit.

   Stroke sensor		Electrically-driven intelligent brake unit		Continuity
   Connector	Terminal	Connector	Terminal
   B39	3	B63*1 B64*2	23	Existed
   	3		2	Not existed
   	3		22	Not existed
   	3		8	Not existed
   	2		23	Not existed
   	2		2	Existed
   	2		22	Not existed
   	2		8	Not existed
   	1		23	Not existed
   	1		2	Not existed
   	1		22	Existed
   	1		8	Not existed
   	4		23	Not existed
   	4		2	Not existed
   	4		22	Not existed
   	4		8	Existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 12.

CHECK STROKE SENSOR POWER SUPPLY

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Check the stroke sensor power voltage.

   +		—	Voltage
   Stroke sensor
   Connector	Terminal
   B39	2	Ground	4.8 - 5.15 V

Is the inspection result normal?

YES>>

GO TO 11.

NO>>

Repair / replace error-detected parts. GO TO 11.

CHECK STROKE SENSOR GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and ground.

   Stroke sensor		—	Continuity
   Connector	Terminal
   B39	4	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 12.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-15" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18ec-1f Stroke Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18EC	1F	Stroke sensor		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When a malfunction is detected in stroke sensor signal circuit.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18EC-1F" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-1F" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect stroke sensor harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect stroke sensor harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-1F" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect stroke sensor harness connector.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Disconnect 12V battery cable from negative terminal.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-1F" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE PEDAL HEIGHT

Check each brake pedal height. Refer to BRAKE PEDAL : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Adjust each height. Refer to BRAKE PEDAL : Periodic Maintenance Operation. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-1F" detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK STROKE SENSOR CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and electrically-driven intelligent brake unit.

   Stroke sensor		Electrically-driven intelligent brake unit		Continuity
   Connector	Terminal	Connector	Terminal
   B39	3	B63*1 B64*2	23	Existed
   	3		2	Not existed
   	3		22	Not existed
   	3		8	Not existed
   	2		23	Not existed
   	2		2	Existed
   	2		22	Not existed
   	2		8	Not existed
   	1		23	Not existed
   	1		2	Not existed
   	1		22	Existed
   	1		8	Not existed
   	4		23	Not existed
   	4		2	Not existed
   	4		22	Not existed
   	4		8	Existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 12.

CHECK STROKE SENSOR POWER SUPPLY

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Check the stroke sensor power voltage.

   +		—	Voltage
   Stroke sensor
   Connector	Terminal
   B39	2	Ground	4.8 - 5.15 V

Is the inspection result normal?

YES>>

GO TO 11.

NO>>

Repair / replace error-detected parts. GO TO 11.

CHECK STROKE SENSOR GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and ground.

   Stroke sensor		—	Continuity
   Connector	Terminal
   B39	4	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 12.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EC-1F" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18ed-04 Motor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18ED	04	Motor power supply		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When a malfunction is detected in motor voltage.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• Electrically-driven intelligent brake unit

• Electrically-driven intelligent brake unit power supply system

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18ED-04" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18ED-04" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18ED-04" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18ED-04" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18ee-01 Stroke Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18EE	01	Stroke sensor		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When stroke sensor value is out of range.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18EE-01" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-01" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect stroke sensor harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect stroke sensor harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-01" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect stroke sensor harness connector.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Disconnect 12V battery cable from negative terminal.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-01" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE PEDAL HEIGHT

Check each brake pedal height. Refer to BRAKE PEDAL : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Adjust each height. Refer to BRAKE PEDAL : Periodic Maintenance Operation. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-01" detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK STROKE SENSOR CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and electrically-driven intelligent brake unit.

   Stroke sensor		Electrically-driven intelligent brake unit		Continuity
   Connector	Terminal	Connector	Terminal
   B39	3	B63*1 B64*2	23	Existed
   	3		2	Not existed
   	3		22	Not existed
   	3		8	Not existed
   	2		23	Not existed
   	2		2	Existed
   	2		22	Not existed
   	2		8	Not existed
   	1		23	Not existed
   	1		2	Not existed
   	1		22	Existed
   	1		8	Not existed
   	4		23	Not existed
   	4		2	Not existed
   	4		22	Not existed
   	4		8	Existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 12.

CHECK STROKE SENSOR POWER SUPPLY

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Check the stroke sensor power voltage.

   +		—	Voltage
   Stroke sensor
   Connector	Terminal
   B39	2	Ground	4.8 - 5.15 V

Is the inspection result normal?

YES>>

GO TO 11.

NO>>

Repair / replace error-detected parts. GO TO 11.

CHECK STROKE SENSOR GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and ground.

   Stroke sensor		—	Continuity
   Connector	Terminal
   B39	4	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 12.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-01" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18ee-04 Stroke Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18EE	04	Stroke sensor		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When stroke sensor value is out of range.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18EE-04" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-04" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect stroke sensor harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect stroke sensor harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-04" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect stroke sensor harness connector.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Disconnect 12V battery cable from negative terminal.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-04" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE PEDAL HEIGHT

Check each brake pedal height. Refer to BRAKE PEDAL : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Adjust each height. Refer to BRAKE PEDAL : Periodic Maintenance Operation. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-04" detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK STROKE SENSOR CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and electrically-driven intelligent brake unit.

   Stroke sensor		Electrically-driven intelligent brake unit		Continuity
   Connector	Terminal	Connector	Terminal
   B39	3	B63*1 B64*2	23	Existed
   	3		2	Not existed
   	3		22	Not existed
   	3		8	Not existed
   	2		23	Not existed
   	2		2	Existed
   	2		22	Not existed
   	2		8	Not existed
   	1		23	Not existed
   	1		2	Not existed
   	1		22	Existed
   	1		8	Not existed
   	4		23	Not existed
   	4		2	Not existed
   	4		22	Not existed
   	4		8	Existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 12.

CHECK STROKE SENSOR POWER SUPPLY

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Check the stroke sensor power voltage.

   +		—	Voltage
   Stroke sensor
   Connector	Terminal
   B39	2	Ground	4.8 - 5.15 V

Is the inspection result normal?

YES>>

GO TO 11.

NO>>

Repair / replace error-detected parts. GO TO 11.

CHECK STROKE SENSOR GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and ground.

   Stroke sensor		—	Continuity
   Connector	Terminal
   B39	4	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 12.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-04" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18ee-64 Stroke Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18EE	64	Stroke sensor		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When a malfunction is detected in stroke sensor.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18EE-64" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-64" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect stroke sensor harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect stroke sensor harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-64" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect stroke sensor harness connector.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Disconnect 12V battery cable from negative terminal.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-64" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE PEDAL HEIGHT

Check each brake pedal height. Refer to BRAKE PEDAL : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Adjust each height. Refer to BRAKE PEDAL : Periodic Maintenance Operation. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-64" detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK STROKE SENSOR CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and electrically-driven intelligent brake unit.

   Stroke sensor		Electrically-driven intelligent brake unit		Continuity
   Connector	Terminal	Connector	Terminal
   B39	3	B63*1 B64*2	23	Existed
   	3		2	Not existed
   	3		22	Not existed
   	3		8	Not existed
   	2		23	Not existed
   	2		2	Existed
   	2		22	Not existed
   	2		8	Not existed
   	1		23	Not existed
   	1		2	Not existed
   	1		22	Existed
   	1		8	Not existed
   	4		23	Not existed
   	4		2	Not existed
   	4		22	Not existed
   	4		8	Existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 12.

CHECK STROKE SENSOR POWER SUPPLY

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Check the stroke sensor power voltage.

   +		—	Voltage
   Stroke sensor
   Connector	Terminal
   B39	2	Ground	4.8 - 5.15 V

Is the inspection result normal?

YES>>

GO TO 11.

NO>>

Repair / replace error-detected parts. GO TO 11.

CHECK STROKE SENSOR GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and ground.

   Stroke sensor		—	Continuity
   Connector	Terminal
   B39	4	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 12.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-64" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18ee-87 Stroke Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18EE	87	Stroke sensor		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When a malfunction is detected in stroke sensor.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18EE-87" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-87" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect stroke sensor harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect stroke sensor harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-87" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect stroke sensor harness connector.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Disconnect 12V battery cable from negative terminal.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-87" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE PEDAL HEIGHT

Check each brake pedal height. Refer to BRAKE PEDAL : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Adjust each height. Refer to BRAKE PEDAL : Periodic Maintenance Operation. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-87" detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK STROKE SENSOR CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and electrically-driven intelligent brake unit.

   Stroke sensor		Electrically-driven intelligent brake unit		Continuity
   Connector	Terminal	Connector	Terminal
   B39	3	B63*1 B64*2	23	Existed
   	3		2	Not existed
   	3		22	Not existed
   	3		8	Not existed
   	2		23	Not existed
   	2		2	Existed
   	2		22	Not existed
   	2		8	Not existed
   	1		23	Not existed
   	1		2	Not existed
   	1		22	Existed
   	1		8	Not existed
   	4		23	Not existed
   	4		2	Not existed
   	4		22	Not existed
   	4		8	Existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 12.

CHECK STROKE SENSOR POWER SUPPLY

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Check the stroke sensor power voltage.

   +		—	Voltage
   Stroke sensor
   Connector	Terminal
   B39	2	Ground	4.8 - 5.15 V

Is the inspection result normal?

YES>>

GO TO 11.

NO>>

Repair / replace error-detected parts. GO TO 11.

CHECK STROKE SENSOR GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and ground.

   Stroke sensor		—	Continuity
   Connector	Terminal
   B39	4	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 12.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-87" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18ee-96 Stroke Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18EE	96	Stroke sensor		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When a malfunction is detected in stroke sensor offset.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18EE-96" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-96" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

5. Disconnect stroke sensor harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect stroke sensor harness connector.

3. Connect 12V battery cable to negative terminal.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Power switch OFF and disconnect CONSULT from data link connector.

6. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

7. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Erase self-diagnosis result for “BRAKE”.

9. Power switch OFF and disconnect CONSULT from data link connector.

10. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

    CAUTION:

    Never operate the Nissan Ariya vehicle.

11. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

12. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-96" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Connect stroke sensor harness connector.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Disconnect 12V battery cable from negative terminal.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-96" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK BRAKE PEDAL HEIGHT

Check each brake pedal height. Refer to BRAKE PEDAL : Periodic Maintenance Operation.

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Adjust each height. Refer to BRAKE PEDAL : Periodic Maintenance Operation. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-96" detected?

YES>>

GO TO 9.

NO>>

INSPECTION END

CHECK STROKE SENSOR CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and electrically-driven intelligent brake unit.

   Stroke sensor		Electrically-driven intelligent brake unit		Continuity
   Connector	Terminal	Connector	Terminal
   B39	3	B63*1 B64*2	23	Existed
   	3		2	Not existed
   	3		22	Not existed
   	3		8	Not existed
   	2		23	Not existed
   	2		2	Existed
   	2		22	Not existed
   	2		8	Not existed
   	1		23	Not existed
   	1		2	Not existed
   	1		22	Existed
   	1		8	Not existed
   	4		23	Not existed
   	4		2	Not existed
   	4		22	Not existed
   	4		8	Existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Repair / replace harness or connector. GO TO 12.

CHECK STROKE SENSOR POWER SUPPLY

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Check the stroke sensor power voltage.

   +		—	Voltage
   Stroke sensor
   Connector	Terminal
   B39	2	Ground	4.8 - 5.15 V

Is the inspection result normal?

YES>>

GO TO 11.

NO>>

Repair / replace error-detected parts. GO TO 11.

CHECK STROKE SENSOR GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect stroke sensor harness connector.

5. Disconnect electrically-driven intelligent brake unit harness connector.

6. Check the continuity between stroke sensor harness connector and ground.

   Stroke sensor		—	Continuity
   Connector	Terminal
   B39	4	Ground	Not existed

Is the inspection result normal?

YES>>

GO TO 12.

NO>>

Repair / replace harness or connector. GO TO 12.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable from negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EE-96" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18ef-16 Rotor Position Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18EF	16	Rotor position sensor		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When a malfunction is detected in rotor position sensor signal.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18EF-16" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EF-16" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EF-16" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EF-16" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18ef-17 Rotor Position Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18EF	17	Rotor position sensor		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When a malfunction is detected in rotor position sensor signal.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18EF-17" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EF-17" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EF-17" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EF-17" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18ef-96 Rotor Position Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18EF	96	Rotor position sensor		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When a malfunction is detected in rotor position sensor signal.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18EF-96" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EF-96" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EF-96" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18EF-96" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18f1-08 Vdc System

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18F1	08	VDC system		Diagnosis condition	When power switch is ON.
				Signal (terminal)	CAN communication signal
				Threshold	When a malfunction is detected in Nissan Ariya vehicle speed signal.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

ABS actuator and electric unit (control unit)

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18F1-08" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SYSTEM

Perform self-diagnosis for “ABS”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F1-08" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected parts. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F1-08" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness, connector, or terminal. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F1-08" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F1-08" detected?

YES ("C18F1-08")>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

YES (Other than "C18F1-08")>>

Check the DTC. Refer to DTC Index.

NO>>

INSPECTION END

C18f3-04 Overheat

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18F3	04	Overheat		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When the control module temperature is 123 ℃ (253.4℉) to 142℃ (287.6℉) after 6.5 seconds at 123℃ (253.4℉) or more.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18F3-04" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F3-04" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F3-04" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F3-04" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK DATA MONITOR

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Select “BRAKE”, “Data monitor” according this order.

3. Check "Temperature 1" and "Temperature 2". Refer to Values On The Diagnosis Tool.

Is "Temperature " -50℃ (-58℉) or less, or 125℃ (257℉) or more?

YES>>

GO TO 8.

NO>>

GO TO 9.

CHECK MOTOR ROOM

Check for any locations of abnormal heating around the electrically-driven intelligent brake unit.

Are there any heated locations?

YES>>

Perform diagnosis of the heated locations, and wait for the temperature to fall. GO TO 9.

NO>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F3-04" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18f3-4b Overheat

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18F3	4B	Overheat		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When the control module temperature is 142℃ (287.6℉) or more after 6.5 seconds at 123℃ (253.4℉) or more.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

• Boost function [Boost operation by the ABS actuator and electric unit (control unit) is activated]

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18F3-4B" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F3-4B" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F3-4B" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F3-4B" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK DATA MONITOR

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Select “BRAKE”, “Data monitor” according this order.

3. Check "Temperature 1" and "Temperature 2". Refer to Values On The Diagnosis Tool.

Is "Temperature " -50℃ (-58℉) or less, or 125℃ (257℉) or more?

YES>>

GO TO 8.

NO>>

GO TO 9.

CHECK MOTOR ROOM

Check for any locations of abnormal heating around the electrically-driven intelligent brake unit.

Are there any heated locations?

YES>>

Perform diagnosis of the heated locations, and wait for the temperature to fall. GO TO 9.

NO>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F3-4B" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18f4-86 Bcm System

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18F4	86	BCM communication		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When a malfunction is detected in BCM system.
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When a malfunction is detected in BCM signal.
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• BCM

• CAN communication line

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18F4-86" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK BCM SYSTEM

Perform self-diagnosis for “BCM”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F4-86" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected parts. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F4-86" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness, connector, or terminal. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F4-86" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F4-86" detected?

YES ("C18F4-86")>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

YES (Other than "C18F4-86")>>

Check the DTC. Refer to DTC Index.

NO>>

INSPECTION END

C18f5-08 Ipdm E/r System

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18F5	08	IPDM E/R communication		Diagnosis condition	When power switch is ON.
				Signal (terminal)	CAN communication signal
				Threshold	When a malfunction is detected in IPDM E/R system.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• IPDM E/R

• CAN communication line

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18F5-08" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK IPDM E/R SYSTEM

Perform self-diagnosis for “IPDM E/R”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F5-08" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected parts. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F5-08" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness, connector, or terminal. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F5-08" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F5-08" detected?

YES ("C18F5-08")>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

YES (Other than "C18F5-08")>>

Check the DTC. Refer to DTC Index.

NO>>

INSPECTION END

C18f6-08 Vcm System

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18F6	08	VCM/ECM/HPCM communication		Diagnosis condition	When power switch is ON.
				Signal (terminal)	CAN communication signal
				Threshold	When a malfunction is detected in VCM system.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• VCM

• CAN communication line

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18F6-08" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK VCM SYSTEM

Perform self-diagnosis for “EV/HEV”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F6-08" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected parts. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F6-08" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness, connector, or terminal. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F6-08" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F6-08" detected?

YES ("C18F6-08")>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

YES (Other than "C18F6-08")>>

Check the DTC. Refer to DTC Index.

NO>>

INSPECTION END

C18f7-08 Abs Actuator and Electric Unit (control Unit) System

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18F7	08	ABS communication		Diagnosis condition	When power switch is ON.
				Signal (terminal)	CAN communication signal
				Threshold	When a malfunction is detected in ABS actuator and electric unit (control unit) system.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• ABS actuator and electric unit (control unit)

• CAN communication line

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18F7-08" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SYSTEM

Perform self-diagnosis for “ABS”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F7-08" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected parts. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F7-08" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness, connector, or terminal. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F7-08" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F7-08" detected?

YES ("C18F7-08")>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

YES (Other than "C18F7-08")>>

Check the DTC. Refer to DTC Index.

NO>>

INSPECTION END

C18f7-86 Abs Actuator and Electric Unit (control Unit) System

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18F7	86	ABS communication		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When a malfunction is detected in ABS actuator and electric unit (control unit) system.
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When a malfunction is detected in brake pedal depress force.
					Diagnosis delay time	1 second or less
				3	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When a malfunction is detected in brake caliper.
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• ABS actuator and electric unit (control unit)

• Brake caliper

• CAN communication line

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18F7-86" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SYSTEM

Perform self-diagnosis for “ABS”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F7-86" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected parts. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F7-86" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness, connector, or terminal. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F7-86" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F7-86" detected?

YES ("C18F7-86")>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

YES (Other than "C18F7-86")>>

Check the DTC. Refer to DTC Index.

NO>>

INSPECTION END

C18f8-08 Vcm System

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18F8	08	VCM/ECM/HPCM communication		Diagnosis condition	When power switch is ON.
				Signal (terminal)	CAN communication signal
				Threshold	When a malfunction is detected in VCM signal.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• VCM

• CAN communication line

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18F8-08" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK VCM SYSTEM

Perform self-diagnosis for “EV/HEV”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F8-08" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected parts. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F8-08" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness, connector, or terminal. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F8-08" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F8-08" detected?

YES ("C18F8-08")>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

YES (Other than "C18F8-08")>>

Check the DTC. Refer to DTC Index.

NO>>

INSPECTION END

C18f8-86 Vcm System

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18F8	86	VCM/ECM/HPCM communication		Diagnosis condition	When power switch is ON.
				Signal (terminal)	CAN communication signal
				Threshold	When a malfunction is detected in VCM signal.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• VCM

• CAN communication line

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18F8-86" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK VCM SYSTEM

Perform self-diagnosis for “EV/HEV”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F8-86" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected parts. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F8-86" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness, connector, or terminal. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F8-86" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F8-86" detected?

YES ("C18F8-86")>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

YES (Other than "C18F8-86")>>

Check the DTC. Refer to DTC Index.

NO>>

INSPECTION END

C18f9-02 Abs Actuator and Electric Unit (control Unit) System

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18F9	02	VDC system		Diagnosis condition	When power switch is ON.
				Signal (terminal)	CAN communication signal
				Threshold	When a malfunction is detected in brake pedal signal.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• ABS actuator and electric unit (control unit)

• CAN communication line

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18F9-02" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SYSTEM

Perform self-diagnosis for “ABS”.

Is DTC detected?

YES>>

Check the DTC. Refer to DTC Index.

NO>>

GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F9-02" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace error-detected parts. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F9-02" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair / replace harness, connector, or terminal. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F9-02" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 8.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18F9-02" detected?

YES ("C18F9-02")>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

YES (Other than "C18F9-02")>>

Check the DTC. Refer to DTC Index.

NO>>

INSPECTION END

C18fa-44 Programing Incomplete

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18FA	44	Calibration incomplete		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When programming data is not same.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Programing is not complete

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18FA-44" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

PERFORM PROGRAMMING

With CONSULT

Perform programming. Refer to Work Procedure.

>>

GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FA-44" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18fa-46 Programing Incomplete

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18FA	46	Calibration incomplete		Diagnosis condition	When power switch is ON.
				Signal (terminal)	—
				Threshold	When programming is incomplete.
				Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Programing is not complete

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18FA-46" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

PERFORM PROGRAMMING

With CONSULT

Perform programming. Refer to Work Procedure.

>>

GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE” after record or print self-diagnosis results and freeze frame data (FFD).

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FA-46" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18fc-18 Temperature Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18FC	18	Temperature sensor		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When a malfunction is detected in temperature sensor [-43.6℃ (-46.48℉) or less].
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When a malfunction is detected in temperature sensor [169℃ (336.2℉) or more].
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18FC-18" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FC-18" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FC-18" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FC-18" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK DATA MONITOR

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Select “BRAKE”, “Data monitor” according this order.

3. Check "Temperature 1" and "Temperature 2". Refer to Values On The Diagnosis Tool.

Is "Temperature " -50℃ (-58℉) or less, or 125℃ (257℉) or more?

YES>>

GO TO 8.

NO>>

GO TO 9.

CHECK MOTOR ROOM

Check for any locations of abnormal heating around the electrically-driven intelligent brake unit.

Are there any heated locations?

YES>>

Perform diagnosis of the heated locations, and wait for the temperature to fall. GO TO 9.

NO>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FC-18" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18fc-19 Temperature Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18FC	19	Temperature sensor		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When a malfunction is detected in temperature sensor [-43.6℃ (-46.48℉) or less].
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When a malfunction is detected in temperature sensor [169℃ (336.2℉) or more].
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18FC-19" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FC-19" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FC-19" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FC-19" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK DATA MONITOR

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Select “BRAKE”, “Data monitor” according this order.

3. Check "Temperature 1" and "Temperature 2". Refer to Values On The Diagnosis Tool.

Is "Temperature " -50℃ (-58℉) or less, or 125℃ (257℉) or more?

YES>>

GO TO 8.

NO>>

GO TO 9.

CHECK MOTOR ROOM

Check for any locations of abnormal heating around the electrically-driven intelligent brake unit.

Are there any heated locations?

YES>>

Perform diagnosis of the heated locations, and wait for the temperature to fall. GO TO 9.

NO>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FC-19" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18fd-18 Temperature Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18FD	18	Temperature sensor		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When a malfunction is detected in temperature sensor [-43.6℃ (-46.48℉) or less].
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When a malfunction is detected in temperature sensor [169℃ (336.2℉) or more].
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18FD-18" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FD-18" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FD-18" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FD-18" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK DATA MONITOR

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Select “BRAKE”, “Data monitor” according this order.

3. Check "Temperature 1" and "Temperature 2". Refer to Values On The Diagnosis Tool.

Is "Temperature " -50℃ (-58℉) or less, or 125℃ (257℉) or more?

YES>>

GO TO 8.

NO>>

GO TO 9.

CHECK MOTOR ROOM

Check for any locations of abnormal heating around the electrically-driven intelligent brake unit.

Are there any heated locations?

YES>>

Perform diagnosis of the heated locations, and wait for the temperature to fall. GO TO 9.

NO>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FD-18" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18fd-19 Temperature Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18FD	19	Temperature sensor		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When a malfunction is detected in temperature sensor [-43.6℃ (-46.48℉) or less].
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When a malfunction is detected in temperature sensor [169℃ (336.2℉) or more].
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18FD-19" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FD-19" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FD-19" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FD-19" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK DATA MONITOR

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Select “BRAKE”, “Data monitor” according this order.

3. Check "Temperature 1" and "Temperature 2". Refer to Values On The Diagnosis Tool.

Is "Temperature " -50℃ (-58℉) or less, or 125℃ (257℉) or more?

YES>>

GO TO 8.

NO>>

GO TO 9.

CHECK MOTOR ROOM

Check for any locations of abnormal heating around the electrically-driven intelligent brake unit.

Are there any heated locations?

YES>>

Perform diagnosis of the heated locations, and wait for the temperature to fall. GO TO 9.

NO>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FD-19" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

C18fe-29 Temperature Sensor

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
C18FE	29	Temperature sensor		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When the difference each temperature sensor is 3.2 V or less.
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	—
					Threshold	When the difference each temperature sensor is 3.4 V or more.
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

Electrically-driven intelligent brake unit

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “C18FE-29" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK 12V BATTERY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Check the 12V battery terminal connections.

4. Check the 12V battery.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace error-detected parts. GO TO 2.

PERFORM SELF-DIAGNOSIS (1)

With CONSULT

1. Connect 12V battery cable to negative terminal.

2. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

3. Power switch OFF and disconnect CONSULT from data link connector.

4. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

5. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

6. Erase self-diagnosis result for “BRAKE”.

7. Power switch OFF and disconnect CONSULT from data link connector.

8. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

9. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

10. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FE-29" detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

CHECK CONNECTOR TERMINALS

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector, then check for malfunctions of terminals and connections.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair / replace harness, connector, or terminal. GO TO 4.

PERFORM SELF-DIAGNOSIS (2)

With CONSULT

1. Connect electrically-driven intelligent brake unit harness connector.

2. Connect 12V battery cable to negative terminal.

3. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

4. Power switch OFF and disconnect CONSULT from data link connector.

5. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

6. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

7. Erase self-diagnosis result for “BRAKE”.

8. Power switch OFF and disconnect CONSULT from data link connector.

9. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

10. Power switch OFF to ON without depressing the brake pedal.

    CAUTION:

    Never set the Nissan Ariya vehicle to READY.

11. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FE-29" detected?

YES>>

GO TO 5.

NO>>

INSPECTION END

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect electrically-driven intelligent brake unit harness connector.

5. Check the electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link. GO TO 6.

PERFORM SELF-DIAGNOSIS (3)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FE-29" detected?

YES>>

GO TO 7.

NO>>

INSPECTION END

CHECK DATA MONITOR

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Select “BRAKE”, “Data monitor” according this order.

3. Check "Temperature 1" and "Temperature 2". Refer to Values On The Diagnosis Tool.

Is "Temperature " -50℃ (-58℉) or less, or 125℃ (257℉) or more?

YES>>

GO TO 8.

NO>>

GO TO 9.

CHECK MOTOR ROOM

Check for any locations of abnormal heating around the electrically-driven intelligent brake unit.

Are there any heated locations?

YES>>

Perform diagnosis of the heated locations, and wait for the temperature to fall. GO TO 9.

NO>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

PERFORM SELF-DIAGNOSIS (4)

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC "C18FE-29" detected?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

INSPECTION END

U1fa1-86 Can Comm Circuit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
U1FA1	86	CAN communication error (ADAS control unit)		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When a malfunction is detected in ADAS control unit 2 system.
					Diagnosis delay time	1 second or less
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When a malfunction is detected in ADAS control unit 2 signal.
					Diagnosis delay time	1 second or less

POSSIBLE CAUSE

• ADAS control unit 2

• CAN communication line

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “U1FA1-86" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

Refer to Trouble Diagnosis Flow Chart.

U2140-87 Can Comm Circuit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
U2140	87	Controller area network communication error (Engine control module)		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When not receiving from VCM.
					Diagnosis delay time	2 seconds or more
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When not transmitting to VCM.
					Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

• VCM

• CAN communication line

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “U2140-87" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

Refer to Trouble Diagnosis Flow Chart.

U2143-87 Can Comm Circuit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
U2143	87	Controller area network communication error (Nissan Ariya Vehicle control module/Hybrid control module)		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When not receiving from VCM.
					Diagnosis delay time	2 seconds or more
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When not transmitting to VCM.
					Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

• VCM

• CAN communication line

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “U2143-87" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

Refer to Trouble Diagnosis Flow Chart.

U2148-87 Can Comm Circuit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
U2148	87	CAN communication error brake control unit		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When not receiving from ABS actuator and electric unit (control unit).
					Diagnosis delay time	2 seconds or more
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When not transmitting to S actuator and electric unit (control unit).
					Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

• ABS actuator and electric unit (control unit)

• CAN communication line

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “U2148-87" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

Refer to Trouble Diagnosis Flow Chart.

U214f-87 Can Comm Circuit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
U214F	87	CAN communication error (BCM)		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When not receiving from BCM.
					Diagnosis delay time	2 seconds or more
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When not transmitting to BCM.
					Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

• BCM

• CAN communication line

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “U214F-87" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

Refer to Trouble Diagnosis Flow Chart.

U2240-87 Can Comm Circuit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
U2240	87	Controller area network communication error (Engine control module)		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When not receiving from VCM.
					Diagnosis delay time	2 seconds or more
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When not transmitting to VCM.
					Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

• VCM

• CAN communication line

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “U2240-87" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

Refer to Trouble Diagnosis Flow Chart.

U2243-87 Can Comm Circuit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
U2243	87	Controller area network communication error (Nissan Ariya Vehicle control module/Hybrid control module)		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When not receiving from VCM.
					Diagnosis delay time	2 seconds or more
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When not transmitting to VCM.
					Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

• VCM

• CAN communication line

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “U2243-87" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

Refer to Trouble Diagnosis Flow Chart.

U2248-87 Can Comm Circuit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
U2248	87	CAN communication error brake control unit		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When not receiving from ABS actuator and electric unit (control unit).
					Diagnosis delay time	2 seconds or more
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When not transmitting to ABS actuator and electric unit (control unit).
					Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

• ABS actuator and electric unit (control unit)

• CAN communication line

FAIL-SAFE

The following functions are suspended.

• Cooperative regenerative brake function

• e-Step function

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “U2248-87" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

Refer to Trouble Diagnosis Flow Chart.

U224f-87 Can Comm Circuit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
U224F	87	CAN communication error (BCM)		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When not receiving from BCM.
					Diagnosis delay time	2 seconds or more
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When not transmitting to BCM.
					Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

• BCM

• CAN communication line

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “U224F-87" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

Refer to Trouble Diagnosis Flow Chart.

U2252-87 Can Comm Circuit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
U2252	87	CAN communication error advanced driver assistant systems control unit		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When not receiving from ADAS control unit 2.
					Diagnosis delay time	2 seconds or more
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When not transmitting to ADAS control unit 2.
					Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

• ADAS control unit 2

• CAN communication line

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “U2252-87" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

Refer to Trouble Diagnosis Flow Chart.

U225b-87 Can Comm Circuit

DTC Description

DTC DETECTION LOGIC

DTC No.		CONSULT screen terms		DTC detection condition
U225B	87	CAN communication error (IPDM E/R)		1	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When not receiving from IPDM E/R.
					Diagnosis delay time	2 seconds or more
				2	Diagnosis condition	When power switch is ON.
					Signal (terminal)	CAN communication signal
					Threshold	When not transmitting to IPDM E/R.
					Diagnosis delay time	2 seconds or more

POSSIBLE CAUSE

• IPDM E/R

• CAN communication line

FAIL-SAFE

Normal control

Confirmation Procedure

PRECONDITIONING

If “Confirmation Procedure” has been previously conducted, always power switch OFF, get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

CAUTION:

Never operate the Nissan Ariya vehicle.

>>

GO TO 2.

CHECK DTC DETECTION

With CONSULT

1. Power switch OFF to ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

2. Power switch OFF and disconnect CONSULT from data link connector.

3. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Erase self-diagnosis result for “BRAKE”.

6. Power switch OFF and disconnect CONSULT from data link connector.

7. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

8. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

9. Perform self-diagnosis for “BRAKE”.

Is DTC “U225B-87" detected?

YES>>

Refer to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

Refer to Trouble Diagnosis Flow Chart.

Power Supply and Ground Circuit

Diagnosis Procedure

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SWITCH ON POWER SUPPLY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect the electrically-driven intelligent brake unit harness connector.

5. Connect 12V battery cable to negative terminal.

6. Check the voltage between the electrically-driven intelligent brake unit harness connector and ground.

   +		—	Voltage
   Electrically-driven intelligent brake unit
   Connector	Terminal
   B63*1 B64*2	20	Ground	Approx. 0 V

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Check the voltage between the electrically-driven intelligent brake unit harness connector and ground.

   +		—	Voltage
   Electrically-driven intelligent brake unit
   Connector	Terminal
   B63*1 B64*2	20	Ground	10 − 16 V

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SWITCH ON POWER SUPPLY CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Check the 10A fuse (#51).

5. Disconnect fuse block (F/B) harness connector.

6. Check the continuity between electrically-driven intelligent brake unit harness connector and fuse block (J/B) harness connector.

   Electrically-driven intelligent brake unit		Fuse block (F/B)		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	20	E57	75	Existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

7. Check the continuity between electrically-driven intelligent brake unit harness connector and ground.

   Electrically-driven intelligent brake unit		—	Continuity
   Connector	Terminal
   B63*1 B64*2	20	Ground	Not existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

Is the inspection result normal?

YES>>

Perform trouble diagnosis for power switch ON power supply.

NO>>

Repair / replace harness, connector, or fuse.

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT MOTOR POWER SUPPLY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Connect 12V battery cable to negative terminal.

3. Check the voltage between the electrically-driven intelligent brake unit harness connector and ground.

   Electrically-driven intelligent brake unit			Voltage
   Connector	Terminal
   	+	-
   B63*1 B64*2	1	9	10 - 16 V

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

4. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

5. Check the voltage between the electrically-driven intelligent brake unit harness connector and ground.

   Electrically-driven intelligent brake unit			Voltage
   Connector	Terminal
   	+	-
   B63*1 B64*2	1	9	10 - 16 V

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT MOTOR POWER SUPPLY CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Check the 50A fusible link (#M).

5. Check the continuity and for short circuit between harness connector terminal 1 of electrically-driven intelligent brake unit and 50A fusible link (#M).

Is the inspection result normal?

YES>>

Perform trouble diagnosis for 12V battery power supply.

NO>>

Repair / replace harness, connector, fuse, or fusible link.

CHECK BRAKE POWER SUPPLY BACKUP UNIT 12V BATTERY POWER SUPPLY

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect brake power supply backup unit harness connector.

5. Connect 12V battery cable to negative terminal.

6. Check the voltage between brake power supply backup unit harness connector and ground.

   +		—	Voltage
   Brake power supply backup unit
   Connector	Terminal
   B94	6	Ground	10 − 16 V

7. Power switch ON without depressing the brake pedal.

   CAUTION:

   Never set the Nissan Ariya vehicle to READY.

8. Check the voltage between brake power supply backup unit harness connector and ground.

   +		—	Voltage
   Brake power supply backup unit
   Connector	Terminal
   B94	6	Ground	10 − 16 V

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

GO TO 6.

CHECK BRAKE POWER SUPPLY BACKUP UNIT 12V BATTERY POWER SUPPLY CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Check the 30A fusible link (#62).

5. Check the continuity and for short circuit between harness connector terminal 6 of brake power supply backup unit and 30A fusible link (#62).

Is the inspection result normal?

YES>>

Perform trouble diagnosis for 12V battery power supply.

NO>>

Repair / replace harness, connector, or fusible link.

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT GROUND

Check the continuity between electrically-driven intelligent brake unit harness connector and ground.

Electrically-driven intelligent brake unit		—	Continuity
Connector	Terminal
B63*1 B64*2	9	Ground	Existed

*1: Without ProPILOT Assist 2.0

*2: With ProPILOT Assist 2.0

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Repair / replace harness or connector.

CHECK BRAKE POWER SUPPLY BACKUP UNIT GROUND

Check the continuity between brake power supply backup unit harness connector and ground.

Brake power supply backup unit		—	Continuity
Connector	Terminal
B94	2	Ground	Existed

Is the inspection result normal?

YES>>

GO TO 9.

NO>>

Repair / replace harness or connector.

CHECK TERMINAL

1. Check electrically-driven intelligent brake unit terminals for damage or loose connection with harness connector.

2. Check fuse block (J/B) terminals for damage or loose connection with harness connector.

3. Check brake power supply backup unit terminals for damage or loose connection with harness connector.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Repair / replace harness, connector, or terminal.

Warning Buzzer

Diagnosis Procedure

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

Perform the trouble diagnosis for electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link.

CHECK WARNING BUZZER CIRCUIT

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect the electrically-driven intelligent brake unit harness connector.

5. Disconnect buzzer harness connector.

6. Check the continuity between electrically-driven intelligent brake unit and warning buzzer.

   Electrically-driven intelligent brake unit		Warning buzzer		Continuity
   Connector	Terminal	Connector	Terminal
   B63*1 B64*2	11*1 6*2	M20	1	Existed
   	19*1 13*2		1	Not existed
   	11*1 6*2		2	Not existed
   	19*1 13*2		2	Existed

   *1: Without ProPILOT Assist 2.0

   *2: With ProPILOT Assist 2.0

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair / replace harness or connector.

CHECK WARNING BUZZER

Check the warning buzzer. Refer to Component Inspection.

Is the inspection result normal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

Replace the warning buzzer. Refer to WARNING BUZZER : Removal & Installation.

Component Inspection

CHECK WARNING BUZZER

1. Power switch OFF and disconnect CONSULT from data link connector.

2. Get out of the Nissan Ariya vehicle, close all doors (other than hood assembly), check that the combination meter is OFF, and wait for 1 minute or more without opening these doors.

   CAUTION:

   Never operate the Nissan Ariya vehicle.

3. Disconnect 12V battery cable from negative terminal.

4. Disconnect buzzer harness connector.

5. Apply voltage of 12V between warning buzzer connector terminals 1 and 2.

   Condition	Warning buzzer
   Voltage applied	Sound
   Voltage not applied	No sound

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace the warning buzzer. Refer to WARNING BUZZER : Removal & Installation.

Brake Warning Lamp

Component Function Check

CHECK BRAKE WARNING LAMP FUNCTION (1)

Check that brake warning lamp turns ON for several second after power switch is turned ON.

CAUTION:

Never set the Nissan Ariya vehicle to READY.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Refer to Diagnosis Procedure.

CHECK BRAKE WARNING LAMP FUNCTION (2)

Check that brake warning lamp in combination meter turns ON or OFF when brake fluid level switch is operated while brake fluid level in reservoir tank is at the specified level.

NOTE:

Brake warning lamp turns ON when brake fluid is less than the specified level (when brake fluid level switch is ON).

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Check the brake fluid level switch system. Refer to Component Inspection.

Diagnosis Procedure

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY ANG GROUND CIRCUIT

Perform the trouble diagnosis for electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link.

PERFORM SELF-DIAGNOSIS

With CONSULT

Perform self-diagnosis for “BRAKE” and “ABS”.

Is malfunction detected?

YES>>

Check the error-detected system.

• “BRAKE”: Refer to DTC Index.

• “ABS”: Refer to DTC Index.

NO>>

GO TO 3.

CHECK THAT BRAKE WARNING LAMP TURNS ON

Check the combination meter. Refer to On Board Diagnosis Function.

Is the inspection result normal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

Repair or replace integrated interface display. Refer to Removal and Installation.

Brake System Warning Lamp

Component Function Check

CHECK BRAKE SYSTEM WARNING LAMP FUNCTION

Check that brake system warning lamp turns ON for several second after power switch is turned ON.

CAUTION:

Never set the Nissan Ariya vehicle to READY.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT POWER SUPPLY AND GROUND CIRCUIT

Perform the trouble diagnosis for electrically-driven intelligent brake unit power supply and ground circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair / replace harness, connector, terminal, fuse, or fusible link.

PERFORM SELF-DIAGNOSIS

With CONSULT

Perform self-diagnosis for “BRAKE” and “ABS”.

Is a malfunction detected?

YES>>

Check the error-detected system.

• “BRAKE”: Refer to DTC Index.

• “ABS”: Refer to DTC Index.

NO>>

GO TO 3.

CHECK BRAKE SYSTEM WARNING LAMP ILLUMINATION

Check the combination meter. Refer to On Board Diagnosis Function.

Is the inspection result normal?

YES>>

Replace the electrically-driven intelligent brake unit. Refer to ELECTRICALLY-DRIVEN INTELLIGENT BRAKE UNIT : Removal & Installation.

NO>>

Repair or replace integrated interface display. Refer to Removal and Installation.