english german french spanish
Nissan

Nissan Ariya: Dtc/circuit Diagnosis

Nissan Ariya (FE0) 2023-2025 Service & Repair Manual / Body Exterior, Doors, Roof & Vehicle Security / Security Control System / Dtc/circuit Diagnosis

B2033-4a Dongle Ng

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC detection condition
B2033–4A Dongle not good Diagnosis condition Power switch ON
Signal (terminal) CAN communication signal
Threshold The ID verification results NG
Diagnosis delay time 1 second or more

POSSIBLE CAUSE

  • Harness or connector

    (CAN communication line is open or shorted)

  • Intelligent Key unit

  • Power steering control module

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

  1. Power switch ON.

  2. Select “Self Diagnostic Result” mode of “INTELLIGENT KEY” using CONSULT.

Is the DTC 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 INITIALIZATION

  1. Perform initialization of Intelligent Key unit and registration of all Intelligent Keys using CONSULT.

    For initialization and registration procedures, refer to CONSULT immobilizer mode and follow the on-screen instructions.

  2. Check that the Nissan Ariya vehicle can be set to READY using registered Intelligent Key.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 2.

REPLACE INTELLIGENT KEY UNIT

Replace Intelligent Key unit. Refer to Removal and Installation.

Is the DTC detected?

YES>>

GO TO 3.

NO>>

INSPECTION END

REPLACE POWER STEERING CONTROL MODULE

Replace power steering control module. Refer to EPS CONTROL UNIT : Removal & Installation.

>>

INSPECTION END

B2042-4a Electric Shift Authentication Fail

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC detecting condition
B2042–4A Electric shift authentication fail Diagnosis condition When power switch is turned from OFF to ON
Signal (terminal) CAN communication signal
Threshold When Intelligent Key unit cannot detect CAN communication with electric shift control module
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Harness or connectors

    (CAN communication line is open or shorted)

  • Electric shift control module

FAIL-SAFE

Prohibit shifting the shift selector from P position

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

  1. Power switch ON.

  2. Check DTC in “Self Diagnostic Result” mode of “INTELLIGENT KEY” using CONSULT.

Is DTC 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 DTC PRIORITY OF INTELLIGENT KEY UNIT

  1. Select “Self Diagnostic Result” mode of “INTELLIGENT KEY” using CONSULT.

  2. If DTC B2042–4A is displayed with two or more DTCs are detected, refer to DTC inspection priority chart, and determine trouble diagnosis.

Is applicable DTC detected?

YES>>

Perform the trouble diagnosis related to the detected DTC. Refer to DTC Index.

NO>>

GO TO 2.

CHECK DTC PRIORITY OF ELECTRIC SHIFT CONTROL MODULE

Select “Self Diagnostic Result” mode of “SHIFT” using CONSULT.

Is the DTC detected?

YES>>

Perform the trouble diagnosis related to the detected DTC. Refer to DTC Index.

NO>>

Replace electric shift control module. Refer to ELECTRIC SHIFT CONTROL MODULE : Removal & Installation.

B2043-4a Electric Shift Id Discord

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC detecting condition
B2043–4A Electric shift ID discord Diagnosis condition When registering electric shift control module
Signal (terminal) CAN communication signal
Threshold Electric shift control module registration has not been completed normally
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

Improper electric shift control module registration operation

FAIL-SAFE

Prohibit shifting the shift selector from P position

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

  1. Power switch ON.

  2. Check DTC in “Self Diagnostic Result” mode of “INTELLIGENT KEY” using CONSULT.

Is DTC 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

REPLACE ELECTRIC SHIFT CONTROL MODULE

Replace electric shift control module. Refer to ELECTRIC SHIFT CONTROL MODULE : Removal & Installation.

>>

INSPECTION END

B2070-68 Key Registration

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC detecting condition
B2070–68 Key registration Diagnosis condition —
Signal (terminal) —
Threshold Intelligent Key that does not match the Nissan Ariya vehicle is registered.
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Improper registration operation

  • Intelligent Key

  • Intelligent Key unit

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

  1. Perform initialization of Intelligent Key unit and registration of all Intelligent Keys using CONSULT.

  2. Select “Self Diagnostic Result” mode of “INTELLIGENT KEY” using CONSULT.

Is the DTC 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

REPLACE INTELLIGENT KEY

  1. Replace Intelligent Key that matches the Nissan Ariya vehicle.

  2. Perform initialization of Intelligent Key unit and registration of Intelligent Key using CONSULT.

    For initialization and registration procedures, refer to CONSULT immobilizer mode and follow the on-screen instructions.

  3. Erase DTC.

  4. Perform DTC confirmation procedure for B2070–68. Refer to DTC Description.

Is the DTC detected?

YES>>

GO TO 2.

NO>>

INSPECTION END

REPLACE INTELLIGENT KEY UNIT

Replace Intelligent Key unit.Refer to Removal and Installation.

>>

INSPECTION END

B2090-14 Nats Antenna Amp.

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC detecting condition
B2090–14 NATS antenna amplifier Diagnosis condition Power switch ON
Signal (terminal) NATS antenna amp. signal
Threshold Inactive communication between NATS antenna amp. and Intelligent Key unit
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Harness or connectors

    (NATS antenna amp. circuit is open or shorted.)

  • Power switch (NATS antenna amp.)

  • Intelligent Key unit

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

  1. Power switch ON.

  2. Select “Self Diagnostic Result” mode of “INTELLIGENT KEY” using CONSULT.

Is the DTC 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 NATS ANTENNA AMP. COMMUNICATION SIGNAL

Check signal between power switch harness connector and ground using an oscilloscope.

(+) (–) Condition

Signal

(Reference value)
Power switch
Connector Terminal
M143 2 Ground Intelligent Key battery is removed When a registered Intelligent Key backside is contacted to power switch 0 V
Other than above

3 When a registered Intelligent Key backside is contacted to power switch 0 V
Other than above

Is the inspection result normal?

YES>>

Replace power switch. Refer to Removal and Installation.

NO>>

GO TO 2.

CHECK NATS ANTENNA AMP. COMMUNICATION SIGNAL CIRCUIT

  1. Power switch OFF.

  2. Disconnect Intelligent Key unit connector and power switch connector.

  3. Check continuity between power switch harness connector and Intelligent Key unit harness connector.

    Power switch Intelligent Key unit Continuity
    Connector Terminal Connector Terminal
    M143 2 M79 19 Existed
    3 20

  4. Check continuity between power switch harness connector and ground.

    Power switch — Continuity
    Connector Terminal
    M143 2 Ground Not existed
    3

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness.

REPLACE INTELLIGENT KEY UNIT

Replace Intelligent Key unit. Refer to Removal and Installation.

>>

INSPECTION END

B2f70-01 Stop Lamp

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC detecting condition
B2F70-01 Stop lamp Diagnosis condition When brake pedal is depressed
Signal (terminal)

  • Stop lamp switch 1 signal

  • Stop lamp switch 2 signal
Threshold BCM makes a comparison between stop lamp switch 1 signal and stop lamp switch 2 signal. It judges from their values to detect the malfunctioning circuit 10 consecutive times
Diagnosis delay time Depress brake pedal 10 times

POSSIBLE CAUSE

  • Harness or connectors

    (Stop lamp switch circuit is open or shorted)

  • Stop lamp switch

  • Fuse

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

  1. Depress brake pedal 10 times.

  2. Power switch ON.

  3. Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT.

Is DTC 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 STOP LAMP SWITCH

  1. Select “Brake switch 1” and “Brake switch 2” in “Data Monitor” mode of “SIGNAL BUFFER” of “BCM” using CONSULT.

  2. Check “Brake switch 1” and “Brake switch 2” indication under the following condition.

    Monitor item Condition Indication
    Brake switch 1 Brake pedal Depressed OFF
    Not depressed ON
    Brake switch 2 Depressed ON
    Not depressed OFF

Is the indication normal?

YES>>

INSPECTION END

NO-1>>

Brake switch 1: GO TO 2.

NO-2>>

Brake switch 2: GO TO 7.

CHECK FUSE

  1. Power switch OFF.

  2. Check that the following fuse is not blown (open).

    Signal name Fuse No.
    Ignition power supply 39 (5 A)

Is the fuse blown (open)?

YES>>

Replace the blown (open) fuse after replacing the cause of blown (open).

NO >>

GO TO 3.

CHECK STOP LAMP SWITCH SIGNAL-1

  1. Disconnect BCM connector.

  2. Power switch ON.

  3. Check voltage between BCM harness connector and ground.

    (+) (–) Condition Voltage
    BCM
    Connector Terminal
    M9 111 Ground Stop lamp switch ON (brake pedal is not depressed) 9 – 16 V
    Stop lamp switch OFF (brake pedal is depressed) 0 V

Is the inspection normal?

YES>>

INSPECTION END

NO>>

GO TO 4.

CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT-1

  1. Power switch OFF.

  2. Disconnect stop lamp switch connector.

  3. Power switch ON.

  4. Check voltage between stop lamp switch harness connector and ground.

    (+) (–) Voltage
    Stop lamp switch
    Connector Terminal
    E115 4 Ground Battery voltage

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Check harness for open or short between stop lamp switch and fuse.

CHECK STOP LAMP SWITCH SIGNAL CIRCUIT-1

  1. Power switch OFF.

  2. Check continuity between stop lamp switch harness connector and BCM harness connector.

    Stop lamp switch BCM Continuity
    Connector Terminal Connector Terminal
    E115 3 M9 111 Existed

  3. Check continuity between stop lamp switch harness connector and ground.

    Stop lamp switch — Continuity
    Connector Terminal
    E115 3 Ground Not existed

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace harness.

CHECK STOP LAMP SWITCH

Refer to Component Inspection.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace stop lamp switch. Refer to BRAKE PEDAL : Exploded View.

CHECK FUSE

  1. Power switch OFF.

  2. Check that the following fuse is not blown (open).

    Signal name Fuse No.
    Battery power supply 13 (10 A)

Is the fuse blown (open)?

YES>>

Replace the blown (open) fuse after replacing the cause of blown (open).

NO >>

GO TO 8.

CHECK STOP LAMP SWITCH SIGNAL-2

  1. Disconnect BCM connector.

  2. Check voltage between BCM harness connector and ground.

    (+) (–) Condition Voltage
    BCM
    Connector Terminal
    M9 110 Ground Stop lamp switch ON (brake pedal is depressed) 9 – 16 V
    Stop lamp switch OFF (brake pedal is not depressed) 0 V

Is the inspection normal?

YES>>

INSPECTION END

NO>>

GO TO 9.

CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT-2

  1. Disconnect stop lamp switch connector.

  2. Check voltage between stop lamp switch harness connector and ground.

    (+) (–) Voltage
    Stop lamp switch
    Connector Terminal
    E115 1 Ground Battery voltage

Is the inspection result normal?

YES>>

GO TO 10.

NO>>

Check harness for open or short between stop lamp switch and fuse.

CHECK STOP LAMP SWITCH SIGNAL CIRCUIT-2

  1. Check continuity between stop lamp switch harness connector and BCM harness connector.

    Stop lamp switch BCM Continuity
    Connector Terminal Connector Terminal
    E115 2 M9 110 Existed

  2. Check continuity between stop lamp switch harness connector and ground.

    Stop lamp switch — Continuity
    Connector Terminal
    E115 2 Ground Not existed

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace harness.

B2f71-23 Stop Lamp

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC detecting condition
B2F71-23 Stop lamp Diagnosis condition Power switch ON
Signal (terminal) Stop lamp switch 1 signal
Threshold When stop lamp switch 1 signal is input even though the brake pedal is not depressed
Diagnosis delay time 10 hours or more

POSSIBLE CAUSE

  • Harness or connectors

    (Stop lamp switch circuit is short to battery)

  • Stop lamp switch

  • Fuse

  • BCM

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

  1. Not depress brake pedal and wait for 10 hours or more.

  2. Power switch ON.

  3. Check DTC in “Self Diagnostic Result” mode of “BCM” using CONSULT.

Is DTC 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 FUSE

  1. Power switch OFF.

  2. Check that the following fuse is not blown (open).

    Signal name Fuse No.
    Ignition power supply 39 (5 A)

Is the fuse blown (open)?

YES>>

Replace the blown (open) fuse after replacing the cause of blown (open).

NO >>

GO TO 2.

CHECK STOP LAMP SWITCH SIGNAL

  1. Disconnect BCM connector.

  2. Power switch ON.

  3. Check voltage between BCM harness connector and ground.

    (+) (–) Condition Voltage
    BCM
    Connector Terminal
    M9 111 Ground Stop lamp switch ON (brake pedal is not depressed) 9 – 16 V
    Stop lamp switch OFF (brake pedal is depressed) 0 V

Is the inspection normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

GO TO 3.

CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT

  1. Power switch OFF.

  2. Disconnect stop lamp switch connector.

  3. Power switch ON.

  4. Check voltage between stop lamp switch harness connector and ground.

    (+) (–) Voltage
    Stop lamp switch
    Connector Terminal
    E115 4 Ground Battery voltage

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Check harness for open or short between stop lamp switch and fuse.

CHECK STOP LAMP SWITCH SIGNAL CIRCUIT

  1. Power switch OFF.

  2. Check continuity between stop lamp switch harness connector and BCM harness connector.

    Stop lamp switch BCM Continuity
    Connector Terminal Connector Terminal
    E115 3 M9 111 Existed

  3. Check continuity between stop lamp switch harness connector and ground.

    Stop lamp switch — Continuity
    Connector Terminal
    E115 3 Ground Not existed

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace harness.

CHECK STOP LAMP SWITCH

Refer to Component Inspection.

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

Replace stop lamp switch. Refer to BRAKE PEDAL : Exploded View.

Stop Lamp Switch

Component Inspection

CHECK STOP LAMP SWITCH

  1. Power switch OFF.

  2. Disconnect stop lamp switch connector.

  3. Check continuity between stop lamp switch terminals.

    Stop lamp switch Condition Continuity
    Terminal
    1 2 Brake pedal Not depressed Not existed
    Depressed Existed
    3 4 Not depressed Existed
    Depressed Not existed

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace stop lamp switch. Refer to BRAKE PEDAL : Exploded View.

Hood Switch

Component Function Check

CHECK FUNCTION

  1. Select “Hood switch” in “DATA MONITOR” mode of “IPDM E/R” using CONSULT.

  2. Check “Hood switch” indication under the following condition.

    Monitor item Condition Indication
    Hood switch Hood Open Open
    Close Close

Is the indication normal?

YES>>

Hood switch is OK.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK HOOD SWITCH SIGNAL

  1. Power switch OFF.

  2. Disconnect hood switch connector.

  3. Check voltage between hood switch harness connector and ground.

    (+) (–) Condition

    Voltage

    (Approx.)
    Hood switch
    Connector Terminal
    E84 2 Ground Open the hood 6 – 16 V

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK HOOD SWITCH SIGNAL CIRCUIT

  1. Disconnect IPDM E/R connector.

  2. Check continuity between IPDM E/R harness connector and hood switch harness connector.

    IPDM E/R Hood switch Continuity
    Connector Terminal Connector Terminal
    E42 52 E84 2 Existed

  3. Check continuity between IPDM E/R harness connector and ground.

    IPDM E/R — Continuity
    Connector Terminal
    E42 52 Ground Not existed

Is the inspection result normal?

YES>>

Replace IPDM E/R. Refer to Removal and Installation.

NO>>

Repair or replace harness.

CHECK HOOD SWITCH GROUND CIRCUIT

Check continuity between hood switch harness connector and ground.

Hood switch — Continuity
Connector Terminal
E84 1 Ground Existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness.

CHECK HOOD SWITCH

Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Replace hood lock assembly. Refer to Removal & Installation.

CHECK INTERMITTENT INCIDENT

Refer to Intermittent Incident.

>>

INSPECTION END

Component Inspection

CHECK HOOD SWITCH

  1. Power switch OFF.

  2. Disconnect hood switch connector.

  3. Check continuity between hood switch terminals.

    Hood switch Condition Continuity
    Terminal
    1 2 Hood Open Existed
    Close Not existed

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace hood lock assembly. Refer to Removal & Installation.

Horn Function

Component Function Check

CHECK FUNCTION

  1. Power switch OFF.

  2. Perform “HORN” in “ACTIVE TEST” mode of “IPDM E/R” using CONSULT.

  3. Check the horn operation.

    Test item Description
    HORN On Horn low/high Sounds (for 0.5 sec.)

Is the operation normal?

YES>>

INSPECTION END

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK HORN FUNCTION

Check horn function with horn switch.

Do horns sound?

YES>>

GO TO 2.

NO>>

Perform the trouble diagnosis for horn circuit. Refer to Wiring Diagram.

CHECK IPDM E/R POWER SUPPLY CIRCUIT

  1. Power switch OFF.

  2. Disconnect horn relay connector and IPDM E/R connector.

  3. Check continuity between IPDM E/R harness connector and horn relay harness connector.

    IPDM E/R Horn relay Continuity
    Connector Terminal Connector Terminal
    E37 9 E77 2 Existed

  4. Check continuity between IPDM E/R harness connector and ground.

    IPDM E/R — Continuity
    Connector Terminal
    E37 9 Ground Not existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness.

CHECK INTERMITTENT INCIDENT

Refer to Intermittent Incident.

>>

INSPECTION END

 
next pagenext pageNissan Vehicle Immobilizer SystemSymptom Diagnosisnext pagenext page

Nissan Ariya (FE0) 2023-2025 Service & Repair Manual

Dtc/circuit Diagnosis

Actual pages

Beginning midst our that fourth appear above of over, set our won’t beast god god dominion our winged fruit image

More Nissan autos

More Nissan Manuals

More Manuals

© 2023-2025 Copyright www.niariya.com