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Nissan

Nissan Ariya: Dtc/circuit Diagnosis

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

B2001-45 Intelligent Key Unit Nissan Ariya SUV

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
B2001–45 Intelligent Key unit Diagnosis condition Power switch ON
Signal (terminal) —
Threshold Intelligent Key unit is internal malfunctioning
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

Intelligent Key unit

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

DTC CONFIRMATION

With CONSULT

  1. Power switch ON.

  2. Select “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 INTELLIGENT KEY UNIT

When DTC “B2001–45” is detected, replace Intelligent Key unit.

>>

Replace Intelligent Key unit. Refer to Removal and Installation.

B2010-1c Battery Voltage Nissan Ariya 2025

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
B2010–1C Battery voltage Diagnosis condition All times
Signal (terminal) Intelligent Key unit battery power supply signal
Threshold Less than 4 V or more than 16 V
Diagnosis delay time —

POSSIBLE CAUSE

  • Harness or connector (power supply circuit)

  • Intelligent Key unit

  • Battery

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

DTC CONFIRMATION

With CONSULT

  1. Power switch ON.

  2. Select the “Self Diagnostic Result” 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 BATTERY VOLTAGE

Measure the battery voltage. Refer to Work Flow.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Replace battery.

CHECK POWER SUPPLY CIRCUIT

Check Intelligent Key unit power supply circuit. Refer to Diagnosis Procedure.

Is the inspection result normal?

YES>>

Replace Intelligent Key unit. Refer to Removal and Installation.

NO>>

Repair the malfunctioning part.

B203e-14 Outside Antenna Nissan Ariya SUV

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC detecting condition
B203E–14 Outside antenna Diagnosis condition Work support “Inside/outside antenna diagnosis”: activated
Signal (terminal) Outside key antenna (rear door LH) signal (Intelligent Key unit connector terminal: 35, 36)
Threshold Outside key antenna (rear door LH) circuit is open or shorted
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Intelligent Key unit

  • Outside key antenna (rear door LH)

  • Harness or connector [outside key antenna (rear door LH) circuit is open or shorted]

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Select “Inside/outside antenna diagnosis” in “Work support” mode of “INTELLIGENT KEY”.

  2. Select the “Self Diagnosis 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 OUTSIDE KEY ANTENNA INPUT SIGNAL 1

  1. Power switch ON.

  2. Check signal between Intelligent Key unit harness connector and ground using oscilloscope.

    (+) (–) Condition

    Signal

    (Reference value)
    Intelligent Key unit
    Connector Terminal
    M79 35 Ground Power switch pressed when Intelligent Key is in the antenna detection area

    Power switch pressed when Intelligent Key is not in the antenna detection area

    36 Power switch pressed when Intelligent Key is in the antenna detection area

    Power switch pressed when Intelligent Key is not in the antenna detection area

Is the inspection result normal?

YES>>

Replace Intelligent Key unit. Refer to Removal and Installation.

NO>>

GO TO 2.

CHECK OUTSIDE KEY ANTENNA CIRCUIT

  1. Power switch OFF.

  2. Disconnect Intelligent Key unit connector and outside key antenna (rear door LH) connector.

  3. Check continuity between Intelligent Key unit harness connector and outside key antenna (rear door LH) connector.

    Intelligent Key unit Outside key antenna (rear door LH) Continuity
    Connector Terminal Connector Terminal
    M79 35 D103 2 Existed
    36 1

  4. Check continuity between Intelligent Key unit harness connector and ground.

    Intelligent Key unit — Continuity
    Connector Terminal
    M79 35 Ground Not existed
    36

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness.

CHECK OUTSIDE KEY ANTENNA INPUT SIGNAL 2

  1. Replace outside key antenna (rear door LH). (New antenna or other antenna)

  2. Connect Intelligent Key unit connector and outside key antenna (rear door LH) connector.

  3. Power switch ON.

  4. Check signal between Intelligent Key unit harness connector and ground using oscilloscope.

    (+) (–) Condition

    Signal

    (Reference value)
    Intelligent Key unit
    Connector Terminal
    M79 35 Ground Power switch pressed when Intelligent Key is in the antenna detection area

    Power switch pressed when Intelligent Key is not in the antenna detection area

    36 Power switch pressed when Intelligent Key is in the antenna detection area

    Power switch pressed when Intelligent Key is not in the antenna detection area

Is the inspection result normal?

YES>>

Replace outside key antenna (rear door LH). Refer to Removal and Installation.

NO>>

Replace Intelligent Key unit. Refer to Removal and Installation.

B2046-42 Eeprom Nissan Ariya 1st generation

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
B2046–42 EEPROM Diagnosis condition Power switch ON
Signal (terminal) —
Threshold EEPROM in Intelligent Key unit is malfunctioning
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Intelligent Key unit

  • Mistook the "Configuration"

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

DTC CONFIRMATION

With CONSULT

  1. Power switch ON.

  2. Select “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

PERFORM "CONFIGURATION"

With CONSULT

  1. Perform "Configuration".

  2. Erase DTC.

  3. Power switch OFF.

  4. Power switch ON.

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

Is DTC detected?

YES>>

GO TO 2.

NO>>

INSPECTION END

REPLACE INTELLIGENT KEY UNIT

Replace Intelligent Key unit. Refer to Intermittent Incident.

>>

INSPECTION END

B2086-23 Request Sw (bd/tr) Nissan Ariya SUV

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen terms DTC Detection Condition
B2086–23 Request switch (Back door/Trunk) Diagnosis condition Power switch ON
Signal (terminal) Back door request switch signal (Intelligent Key unit connector terminal 5)
Threshold Intelligent Key unit detects that the back door request switch is stuck ON
Diagnosis delay time 10 seconds or more

POSSIBLE CAUSE

  • Back door opener switch assembly (back door request switch)

  • Harness or connector

    [Back door opener switch assembly (back door request switch) circuit is shorted]

  • Intelligent Key unit

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

CHECK SELF-DIAG RESULT

With CONSULT

  1. Power switch ON and wait for 10 seconds or more.

  2. Select “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 BACK DOOR REQUEST SWITCH INPUT SIGNAL

  1. Power switch OFF.

  2. Disconnect back door opener switch assembly connector.

  3. Check voltage between back door opener switch assembly harness connector and ground.

    (+) (–) Voltage
    Back door opener switch assembly
    Connector Terminal
    D121 4 Ground 12 V

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK BACK DOOR REQUEST SWITCH CIRCUIT

  1. Disconnect Intelligent Key unit connector.

  2. Check continuity between back door opener switch assembly harness connector and Intelligent Key unit harness connector.

    Back door opener switch assembly Intelligent Key unit Continuity
    Connector Terminal Connector Terminal
    D121 4 M79 5 Existed

  3. Check continuity between back door opener switch assembly harness connector and ground.

    Back door opener switch assembly — Continuity
    Connector Terminal
    D121 4 Ground Not existed

Is the inspection result normal?

YES>>

Replace Intelligent Key unit. Refer to Removal and Installation.

NO>>

Repair or replace harness.

CHECK BACK DOOR REQUEST SWITCH GROUND CIRCUIT

Check continuity between back door opener switch assembly harness connector and ground.

Back door opener switch assembly — Continuity
Connector Terminal
D121 3 Ground Existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness.

CHECK BACK DOOR REQUEST SWITCH

Refer to Component Inspection.

Is the inspection result normal?

YES>>

Check intermittent incident. Refer to Intermittent Incident.

NO>>

Replace back door opener switch assembly. Refer to Removal and Installation.

B2087-08 One Touch Sensor (fl) Nissan Ariya first Gen

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
B2087-08 One touch sensor (front left) Diagnosis condition One touch sensor is operated
Signal (terminal) One touch sensor signal
Threshold When Intelligent Key unit detects communication error by one touch sensor (front LH)
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Intelligent Key unit

  • One touch sensor (front LH)

  • Harness or connector [one touch sensor (front LH) circuit is open or shorted]

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

CHECK SELF-DIAG RESULT

With CONSULT

  1. Lock or unlock doors by one touch sensor.

  2. Check “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 ONE TOUCH SENSOR INPUT SIGNAL

Check signal between Intelligent Key unit harness connector and ground using oscilloscope.

(+) (–) Condition

Signal

(Reference value)
Intelligent Key unit
Connector Terminal
M79 8 Ground One touch sensor (front LH) Touched

Not touched 12 V

Is the inspection result normal?

YES>>

Replace front door outside handle (front LH). Refer to Removal & Installation.

NO>>

GO TO 2.

CHECK ONE TOUCH SENSOR INPUT SIGNAL CIRCUIT

  1. Power switch OFF.

  2. Disconnect Intelligent Key unit connector and one touch sensor (front LH) connector.

  3. Check continuity between Intelligent Key unit harness connector and one touch sensor (front LH) harness connector.

    Intelligent Key unit One touch sensor (front LH) Continuity
    Connector Terminal Connector Terminal
    M79 8 D55 1 Existed

  4. Check continuity between Intelligent Key unit harness connector and ground.

    Intelligent Key unit — Continuity
    Connector Terminal
    M79 8 Ground Not existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness.

CHECK ONE TOUCH SENSOR GROUND CIRCUIT

Check continuity between one touch sensor (front LH) harness connector and ground.

One touch sensor (front LH) — Continuity
Connector Terminal
D55 2 Ground Existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness.

REPLACE ONE TOUCH SENSOR

  1. Replace front door outside handle (front LH). Refer to Removal & Installation.

  2. Erase DTC, and then check “DTC CONFIRMATION PROCEDURE”. Refer to DTC Description.

Is DTC detected?

YES>>

Replace Intelligent Key unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B2087-11 One Touch Sensor (fl) Nissan Ariya 1st generation

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
B2087-11 One touch sensor (front left) Diagnosis condition One touch sensor is operated
Signal (terminal) One touch sensor signal
Threshold When Intelligent Key unit detects shorted to ground of one touch sensor (front LH) signal circuit
Diagnosis delay time 3 second or more

POSSIBLE CAUSE

  • Intelligent Key unit

  • Harness or connector [one touch sensor (front LH) circuit is shorted to ground]

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

CHECK SELF-DIAG RESULT

With CONSULT

  1. Lock or unlock doors by one touch sensor.

  2. Wait for 3 seconds or more.

  3. Check “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 ONE TOUCH SENSOR INPUT SIGNAL

Check signal between Intelligent Key unit harness connector and ground using oscilloscope.

(+) (–) Condition

Signal

(Reference value)
Intelligent Key unit
Connector Terminal
M79 8 Ground One touch sensor (front LH) Touched

Not touched 12 V

Is the inspection result normal?

YES>>

Replace Intelligent Key unit. Refer to Removal and Installation.

NO>>

GO TO 2.

CHECK ONE TOUCH SENSOR INPUT SIGNAL CIRCUIT (FOR SHORT)

  1. Power switch OFF.

  2. Disconnect Intelligent Key unit connector and one touch sensor (front LH) connector.

  3. Check continuity between Intelligent Key unit harness connector and ground.

    Intelligent Key unit — Continuity
    Connector Terminal
    M79 8 Ground Not existed

Is the inspection result normal?

YES>>

Check intermittent incident. Refer to Intermittent Incident.

NO>>

Repair or replace harness.

B2087-23 One Touch Sensor (fl) Nissan Ariya first Gen

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
B2087-23 One touch sensor (front left) Diagnosis condition When operating one touch sensor (front LH) inside of outside handle
Signal (terminal) One touch sensor signal
Threshold When Intelligent Key unit detects malfunction in one touch sensor (front LH) inside of outside handle
Diagnosis delay time 4 second or more

POSSIBLE CAUSE

One touch sensor (front LH)

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

CHECK SELF-DIAG RESULT

With CONSULT

  1. Unlock doors by one touch sensor.

  2. Wait for 4 seconds or more.

  3. Check “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 ONE TOUCH SENSOR

Replace front door outside handle (front LH). Refer to Removal & Installation.

>>

INSPECTION END

B2409-12 Half Latch Switch Nissan Ariya first Gen

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
B2409-12 Half latch switch Diagnosis condition When the door unlock operates while power switch is OFF (auto ACC OFF status) or the battery terminal is removed
Signal (terminal) Half latch switch signal
Threshold Automatic back door control unit detects shorted to battery of half latch switch circuit
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Harness or connector (half latch switch circuit is shorted to battery)

  • Automatic back door control unit

  • Back door lock assembly (half latch switch)

FAIL-SAFE

Inhibit automatic back door system [only operate back door closure function (open function)]

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Door unlock operates by Intelligent Key, one touch sensor or door request switch while power switch is OFF (auto ACC OFF status).

  2. Check “Self Diagnostic Result” mode of “AUTOMATIC BACK DOOR” 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 HALF LATCH SWITCH INPUT SIGNAL

Check voltage between automatic back door control unit harness connector and ground.

(+) (–) Condition Voltage
Automatic back door control unit
Connector Terminal
B159 10 Ground Back door Other than bellow 0 – 1 V
Fully closed/ half latch 9 – 16 V

Is the inspection result normal?

YES>>

Replace automatic back door control unit. Refer to Removal and Installation.

NO>>

GO TO 2.

CHECK HALF LATCH SWITCH CIRCUIT (FOR SHORT)

  1. Power switch OFF.

  2. Disconnect automatic back door control unit connector and back door lock assembly connector.

  3. Check voltage between automatic back door control unit harness connector and ground.

    Automatic back door control unit —

    Voltage

    (Approx.)
    Connector Terminal
    B159 10 Ground 0 V

Is the inspection result normal?

YES>>

Replace back door lock assembly. Refer to Removal & Installation.

NO>>

Repair or replace harness.

B2409-14 Half Latch Switch Nissan Ariya 2023

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
B2409-14 Half latch switch Diagnosis condition When back door open
Signal (terminal) Half latch switch signal
Threshold

Automatic back door control unit detects when one of the following conditions is satisfied

  • Half latch switch circuit is open or shorted to ground

  • Half latch switch is stuck ON
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Harness or connector (half latch switch circuit is open or shorted to ground)

  • Automatic back door control unit

  • Back door lock assembly (half latch switch)

FAIL-SAFE

Inhibit automatic back door system [only operate back door closure function (open function)]

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Power switch ON.

  2. Open the back door.

  3. Check “Self Diagnostic Result” mode of “AUTOMATIC BACK DOOR” 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 HALF LATCH SWITCH INPUT SIGNAL

Check voltage between automatic back door control unit harness connector and ground.

(+) (–) Condition Voltage
Automatic back door control unit
Connector Terminal
B159 10 Ground Back door Other than bellow 0 – 1 V
Fully closed/ half latch 9 – 16 V

Is the inspection result normal?

YES>>

Replace automatic back door control unit. Refer to Removal and Installation.

NO>>

GO TO 2.

CHECK HALF LATCH SWITCH CIRCUIT

  1. Power switch OFF.

  2. Disconnect automatic back door control unit connector and back door lock assembly connector.

  3. Check continuity between automatic back door control unit harness connector and back door lock assembly harness connector.

    Automatic back door control unit Back door lock assembly Continuity
    Connector Terminal Connector Terminal
    B159 10 D134 6 Existed

  4. Check continuity between automatic back door control unit harness connector and ground.

    Automatic back door control unit — Continuity
    Connector Terminal
    B159 10 Ground Not existed

Is the inspection result normal?

YES>>

Replace back door lock assembly. Refer to Removal & Installation.

NO>>

Repair or replace harness.

B2416-15 Touch Sensor Circuit Rh Open Nissan Ariya 2025

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
B2416-15 Touch sensor circuit RH open Diagnosis condition Power switch ON
Signal (terminal) Touch sensor RH signal
Threshold

Automatic back door control unit detects when one of the following conditions is satisfied

  • Touch sensor RH circuit is open or shorted

  • Malfunction of touch sensor RH
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Harness or connector (touch sensor RH circuit is open or shorted)

  • Automatic back door control unit

  • Touch sensor RH

FAIL-SAFE

Inhibit automatic back door system (only operate back door closure function)

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Power switch ON.

  2. Check “Self Diagnostic Result” mode of “AUTOMATIC BACK DOOR” 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 TOUCH SENSOR INPUT SIGNAL

Check voltage between automatic back door control unit harness connector and ground.

(+) (–) Condition Voltage
Automatic back door control unit
Connector Terminal
B159 13 Ground Touch sensor RH Detect obstruction 0.2 – 3 V
Other than above 3.4 – 6.5 V

Is the inspection result normal?

YES>>

Replace automatic back door control unit. Refer to Removal and Installation.

NO>>

GO TO 2.

CHECK TOUCH SENSOR CIRCUIT

  1. Power switch OFF.

  2. Disconnect automatic back door control unit connector and touch sensor RH connector.

  3. Check continuity between automatic back door control unit harness connector and touch sensor RH harness connector.

    Automatic back door control unit Touch sensor RH Continuity
    Connector Terminal Connector Terminal
    B159 13 D140 1 Existed

  4. Check continuity between automatic back door control unit harness connector and ground.

    Automatic back door control unit — Continuity
    Connector Terminal
    B159 13 Ground Not existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness.

CHECK TOUCH SENSOR GROUND CIRCUIT

  1. Disconnect touch sensor LH connector.

  2. Check continuity between automatic back door control unit harness connector and touch sensor RH harness connector.

    Automatic back door control unit Touch sensor RH Continuity
    Connector Terminal Connector Terminal
    B159 14 D140 2 Existed

  3. Check continuity between automatic back door control unit harness connector and ground.

    Automatic back door control unit — Continuity
    Connector Terminal
    B159 14 Ground Not existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness.

CHECK TOUCH SENSOR

Check touch sensor. Refer to Component Inspection.

Is the inspection result normal?

YES>>

Check intermittent incident. Refer to Intermittent Incident.

NO>>

Replace touch sensor RH. Refer to Removal & Installation.

B2422-78 Back Door Position Abnormal Nissan Ariya 2023

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
B2422-78 Back door position abnormal Diagnosis condition Power switch ON
Signal (terminal)

  • Encoder LH signal

  • Encoder RH signal
Threshold When the automatic back door control unit detects back door position malfunction according to the encoder signal
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Spindle unit LH

  • Spindle unit RH

  • Automatic back door control unit

  • Harness or connector (encoder LH circuit is open or shorted)

  • Harness or connector (encoder RH circuit is open or shorted)

FAIL-SAFE

Inhibit automatic back door system (only operate back door closure function)

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Power switch ON.

  2. Check “Self Diagnostic Result” mode of “AUTOMATIC BACK DOOR” 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 ENCODER SIGNAL

  1. Power switch ON.

  2. Select “AUTOMATIC BACK DOOR” using CONSULT.

  3. Select “Spindle sensor LH” and “Spindle sensor RH” in “Data Monitor” mode.

  4. Check that the function operates normally according to the following conditions.

    Monitor item Condition Status
    Spindle sensor LH Back door Open The numeral value increases
    Close The numeral value decreases
    Spindle sensor RH Back door Open The numeral value increases
    Close The numeral value decreases

Is the inspection result normal?

YES>>

Check intermittent incident. Refer to Intermittent Incident.

NO-1>>

Spindle sensor LH: GO TO 2.

NO-2>>

Spindle sensor RH: GO TO 4.

CHECK ENCODER LH INPUT SIGNAL

Check signal between automatic back door control unit harness connector and ground using oscilloscope.

(+) (–) Condition

Signal

(Reference value)
Automatic back door control unit
Connector Terminal
B159 29 Ground Back door Moving (manual)

When stopped 0 – 1 V or 9 – 16 V
30 Moving (manual)

When stopped 0 – 1 V or 9 – 16 V

Is the inspection result normal?

YES>>

Replace automatic back door control unit. Refer to Removal and Installation.

NO>>

GO TO 3.

CHECK ENCODER LH CIRCUIT

  1. Power switch OFF.

  2. Disconnect automatic back door control unit connector and spindle unit LH connector.

  3. Check continuity between automatic back door control unit harness connector and spindle unit LH harness connector.

    Automatic back door control unit Spindle unit LH Continuity
    Connector Terminal Connector Terminal
    B159 29 B196 5 Existed
    30 4

  4. Check continuity between automatic back door control unit harness connector and ground.

    Automatic back door control unit — Continuity
    Connector Terminal
    B159 29 Ground Not existed
    30

Is the inspection result normal?

YES>>

Replace spindle unit LH. Refer to Removal & Installation.

NO>>

Repair or replace harness.

CHECK ENCODER RH INPUT SIGNAL

Check signal between automatic back door control unit harness connector and ground using oscilloscope.

(+) (–) Condition

Signal

(Reference value)
Automatic back door control unit
Connector Terminal
B159 18 Ground Back door Moving (manual)

When stopped 0 – 1 V or 9 – 16 V
19 Moving (manual)

When stopped 0 – 1 V or 9 – 16 V

Is the inspection result normal?

YES>>

Replace automatic back door control unit. Refer to Removal and Installation.

NO>>

GO TO 5.

CHECK ENCODER RH CIRCUIT

  1. Power switch OFF.

  2. Disconnect automatic back door control unit connector and spindle unit RH connector.

  3. Check continuity between automatic back door control unit harness connector and spindle unit RH harness connector.

    Automatic back door control unit Spindle unit RH Continuity
    Connector Terminal Connector Terminal
    B159 18 B197 5 Existed
    19 4

  4. Check continuity between automatic back door control unit harness connector and ground.

    Automatic back door control unit — Continuity
    Connector Terminal
    B159 18 Ground Not existed
    19

Is the inspection result normal?

YES>>

Replace spindle unit RH. Refer to Removal & Installation.

NO>>

Repair or replace harness.

B2426-11 Spindle Sensor Lh Nissan Ariya

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
B2426-11 Spindle sensor LH Diagnosis condition When automatic back door open/close function operate
Signal (terminal) Encoder LH signal
Threshold Automatic back door control unit cannot detects the encoder LH signal
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Spindle unit LH

  • Automatic back door control unit

  • Harness or connector (encoder LH circuit is shorted to ground)

FAIL-SAFE

Inhibit automatic back door system (only operate back door closure function)

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Power switch ON.

  2. Operate automatic back door.

  3. Check “Self Diagnostic Result” mode of “AUTOMATIC BACK DOOR” 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 ENCODER SIGNAL

  1. Power switch ON.

  2. Select “AUTOMATIC BACK DOOR” using CONSULT.

  3. Select “Spindle sensor LH” in “Data Monitor” mode.

  4. Check that the function operates normally according to the following conditions.

    Monitor item Condition Status
    Spindle sensor LH Back door Open The numeral value increases
    Close The numeral value decreases

Is the inspection result normal?

YES>>

Check intermittent incident. Refer to Intermittent Incident.

NO>>

GO TO 2.

CHECK ENCODER POWER SUPPLY

  1. Power switch OFF.

  2. Disconnect spindle unit LH connector.

  3. Check voltage between spindle unit LH harness connector and ground.

    (+) (–) Voltage
    Spindle unit LH
    Connector Terminal
    B196 3 Ground 9 – 16 V

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

GO TO 3.

CHECK ENCODER CIRCUIT-1

  1. Disconnect automatic back door control unit connector.

  2. Check continuity between automatic back door control unit harness connector and ground.

    Automatic back door control unit — Continuity
    Connector Terminal
    B159 31 Ground Not existed

Is the inspection result normal?

YES>>

Replace automatic back door control unit. Refer to Removal and Installation.

NO>>

Repair or replace harness.

CHECK ENCODER CIRCUIT-2

  1. Disconnect automatic back door control unit connector and spindle unit RH connector.

  2. Check continuity between automatic back door control unit harness connector and ground.

    Automatic back door control unit — Continuity
    Connector Terminal
    B159 28 Ground Not existed

Is the inspection result normal?

YES>>

Replace spindle unit LH. Refer to Removal & Installation.

NO>>

Repair or replace harness.

B2426-12 Spindle Sensor Lh Nissan Ariya 2023

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
B2426-12 Spindle sensor LH Diagnosis condition When the door unlock operates while power switch is OFF (auto ACC OFF status) or the battery terminal is removed
Signal (terminal) Encoder LH signal
Threshold When automatic back door control unit detects shorted to battery of encoder LH circuit
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Spindle unit LH

  • Automatic back door control unit

  • Harness or connector (encoder LH circuit is shorted to battery)

FAIL-SAFE

Inhibit automatic back door system (only operate back door closure function)

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Door unlock operates by Intelligent Key, one touch sensor or door request switch while power switch is OFF (auto ACC OFF status).

  2. Check “Self Diagnostic Result” mode of “AUTOMATIC BACK DOOR” 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 ENCODER SIGNAL

  1. Power switch ON.

  2. Select “AUTOMATIC BACK DOOR” using CONSULT.

  3. Select “Spindle sensor LH” in “Data Monitor” mode.

  4. Check that the function operates normally according to the following conditions.

    Monitor item Condition Status
    Spindle sensor LH Back door Open The numeral value increases
    Close The numeral value decreases

Is the inspection result normal?

YES>>

Check intermittent incident. Refer to Intermittent Incident.

NO>>

GO TO 2.

CHECK ENCODER CIRCUIT

  1. Power switch OFF.

  2. Disconnect automatic back door control unit connector, spindle unit LH connector and spindle unit RH connector.

  3. Check voltage between automatic back door control unit harness connector and ground.

    Automatic back door control unit —

    Voltage

    (Approx.)
    Connector Terminal
    B159 28 Ground 0 V
    31

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness.

REPLACE SPINDLE UNIT LH

Replace spindle unit LH. Refer to Removal & Installation.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace automatic back door control unit. Refer to Removal and Installation.

B2426-13 Spindle Sensor Lh Nissan Ariya 2023

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
B2426-13 Spindle sensor LH Diagnosis condition When automatic back door open/close function operate
Signal (terminal) Encoder LH signal
Threshold Automatic back door control unit cannot detects the encoder LH signal
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Spindle unit LH

  • Automatic back door control unit

  • Harness or connector (encoder LH circuit is opened)

FAIL-SAFE

Inhibit automatic back door system (only operate back door closure function)

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Power switch ON.

  2. Operate automatic back door.

  3. Check “Self Diagnostic Result” mode of “AUTOMATIC BACK DOOR” 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 ENCODER SIGNAL

  1. Power switch ON.

  2. Select “AUTOMATIC BACK DOOR” using CONSULT.

  3. Select “Spindle sensor LH” in “Data Monitor” mode.

  4. Check that the function operates normally according to the following conditions.

    Monitor item Condition Status
    Spindle sensor LH Back door Open The numeral value increases
    Close The numeral value decreases

Is the inspection result normal?

YES>>

Check intermittent incident. Refer to Intermittent Incident.

NO>>

GO TO 2.

CHECK ENCODER INPUT SIGNAL

Check signal between automatic back door control unit harness connector and ground using oscilloscope.

(+) (–) Condition

Signal

(Reference value)
Automatic back door control unit
Connector Terminal
B159 29 Ground Back door Moving (manual)

When stopped 0 – 1 V or 9 – 16 V
30 Moving (manual)

When stopped 0 – 1 V or 9 – 16 V

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

GO TO 3.

CHECK ENCODER CIRCUIT

  1. Power switch OFF.

  2. Disconnect automatic back door control unit connector and spindle unit LH connector.

  3. Check continuity between automatic back door control unit harness connector and spindle unit LH harness connector.

    Automatic back door control unit Spindle unit LH Continuity
    Connector Terminal Connector Terminal
    B159 29 B196 5 Existed
    30 4

Is the inspection result normal?

YES>>

Replace spindle unit LH. Refer to Removal & Installation.

NO>>

Repair or replace harness.

CHECK ENCODER POWER SUPPLY

  1. Power switch OFF.

  2. Disconnect spindle unit LH connector.

  3. Check voltage between spindle unit LH harness connector and ground.

    (+) (–) Voltage
    Spindle unit LH
    Connector Terminal
    B196 3 Ground 9 – 16 V

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

GO TO 5.

CHECK ENCODER CIRCUIT-1

  1. Disconnect automatic back door control unit connector.

  2. Check continuity between automatic back door control unit harness connector and spindle unit LH harness connector.

    Automatic back door control unit Spindle unit LH Continuity
    Connector Terminal Connector Terminal
    B159 31 B196 3 Existed

Is the inspection result normal?

YES>>

Replace automatic back door control unit. Refer to Removal and Installation.

NO>>

Repair or replace harness.

CHECK ENCODER CIRCUIT-2

  1. Disconnect automatic back door control unit connector and spindle unit RH connector.

  2. Check continuity between automatic back door control unit harness connector and spindle unit LH harness connector.

    Automatic back door control unit Spindle unit LH Continuity
    Connector Terminal Connector Terminal
    B159 28 B196 6 Existed

Is the inspection result normal?

YES>>

Replace spindle unit LH. Refer to Removal & Installation.

NO>>

Repair or replace harness.

B2426-25 Spindle Sensor Lh Nissan Ariya first Gen

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
B2426-25 Spindle sensor LH Diagnosis condition When automatic back door open/close function operate
Signal (terminal) Encoder LH signal
Threshold Automatic back door control unit cannot detects the encoder LH signal
Diagnosis delay time Less than 40 pulse

POSSIBLE CAUSE

  • Spindle unit LH

  • Automatic back door control unit

  • Harness or connector (encoder LH circuit is open or shorted)

FAIL-SAFE

Inhibit automatic back door system (only operate back door closure function)

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Power switch ON.

  2. Operate automatic back door.

  3. Check “Self Diagnostic Result” mode of “AUTOMATIC BACK DOOR” 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 ENCODER SIGNAL

  1. Power switch ON.

  2. Select “AUTOMATIC BACK DOOR” using CONSULT.

  3. Select “Spindle sensor LH” in “Data Monitor” mode.

  4. Check that the function operates normally according to the following conditions.

    Monitor item Condition Status
    Spindle sensor LH Back door Open The numeral value increases
    Close The numeral value decreases

Is the inspection result normal?

YES>>

Check intermittent incident. Refer to Intermittent Incident.

NO>>

GO TO 2.

CHECK ENCODER INPUT SIGNAL

Check signal between automatic back door control unit harness connector and ground using oscilloscope.

(+) (–) Condition

Signal

(Reference value)
Automatic back door control unit
Connector Terminal
B159 29 Ground Back door Moving (manual)

When stopped 0 – 1 V or 9 – 16 V
30 Moving (manual)

When stopped 0 – 1 V or 9 – 16 V

Is the inspection result normal?

YES>>

Replace automatic back door control unit. Refer to Removal and Installation.

NO>>

GO TO 3.

CHECK ENCODER CIRCUIT

  1. Power switch OFF.

  2. Disconnect automatic back door control unit connector and spindle unit LH connector.

  3. Check continuity between automatic back door control unit harness connector and spindle unit LH harness connector.

    Automatic back door control unit Spindle unit LH Continuity
    Connector Terminal Connector Terminal
    B159 29 B196 5 Existed
    30 4

  4. Check continuity between automatic back door control unit harness connector and ground.

    Automatic back door control unit — Continuity
    Connector Terminal
    B159 29 Ground Not existed
    30

Is the inspection result normal?

YES>>

Replace spindle unit LH. Refer to Removal & Installation.

NO>>

Repair or replace harness.

B2428-44 Automatic Back Door Control Unit Nissan Ariya

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
B2428-44 Automatic back door control unit Diagnosis condition Power switch ON
Signal (terminal) —
Threshold Automatic back door control unit internal malfunction (data memory error)
Diagnosis delay time —

POSSIBLE CAUSE

Automatic back door control unit

FAIL-SAFE

Inhibit automatic back door system all function

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Power switch ON.

  2. Check “Self Diagnostic Result” mode of “AUTOMATIC BACK DOOR” 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 AUTOMATIC BACK DOOR CONTROL UNIT

When DTC "B2428-44" is detected, replace automatic back door control unit.

>>

Replace automatic back door control unit. Refer to Removal and Installation.

B2428-54 Automatic Back Door Control Unit Nissan Ariya 1st generation

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
B2428-54 Automatic back door control unit Diagnosis condition Power switch ON
Signal (terminal) —
Threshold When the calibration of [CALIBRATION OF AUTOMATIC BACK DOOR POSITION INFORMATION] is not complete
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

[CALIBRATION OF AUTOMATIC BACK DOOR POSITION INFORMATION]: not complete

FAIL-SAFE

Inhibit automatic back door system all function

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Power switch ON.

  2. Check “Self Diagnostic Result” mode of “AUTOMATIC BACK DOOR” 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

CALIBRATION OF AUTOMATIC BACK DOOR POSITION INFORMATION

  1. Perform initialization setting of automatic back door position information. Refer to Work Procedure.

  2. Erase DTC, and then check “DTC CONFIRMATION PROCEDURE”. Refer to DTC Description.

Is DTC detected?

YES>>

Replace automatic back door control unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B242a-11 Closure Motor Nissan Ariya SUV

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
B242A-11 Closure motor Diagnosis condition Power switch ON
Signal (terminal) Closure motor signal
Threshold Automatic back door control unit cannot detects the closure motor signal
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Harness or connector (closure motor circuit is shorted to ground)

  • Automatic back door control unit

  • Back door lock assembly (closure motor)

FAIL-SAFE

Inhibit automatic back door system all function

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Power switch ON.

  2. Check “Self Diagnostic Result” mode of “AUTOMATIC BACK DOOR” 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 BACK DOOR CLOSURE MOTOR CIRCUIT

  1. Power switch OFF.

  2. Disconnect automatic back door control unit connector and back door lock assembly connector.

  3. Check continuity between automatic back door control unit harness connector and ground.

    Automatic back door control unit — Continuity
    Connector Terminal
    B158 33 Ground Not existed
    34

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace harness.

REPLACE BACK DOOR LOCK ASSEMBLY

  1. Replace back door lock assembly. Refer to Removal & Installation.

  2. Erase DTC, and then check "DTC CONFIRMATION PROCEDURE". Refer to DTC Description.

Is DTC detected?

YES>>

Replace automatic back door control unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B242a-98 Closure Motor Nissan Ariya: FE0

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
B242A-98 Closure motor Diagnosis condition When back door auto closure function operate
Signal (terminal) —
Threshold When thermal protection operate of the closure motor
Diagnosis delay time 20 seconds or more

POSSIBLE CAUSE

  • Back door lock assembly (closure motor)

  • Continuous operation of the closure motor

  • Automatic back door control unit

FAIL-SAFE

Inhibit automatic back door system all function

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Operate back door auto closure function.

  2. Check “Self Diagnostic Result” mode of “AUTOMATIC BACK DOOR” 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 SELF DIAGNOSTIC RESULT

  1. Back door auto closure function is operated, and wait for 40 seconds or more.

  2. Erase DTC.

  3. Select “Self Diagnostic Result” mode of “AUTOMATIC BACK DOOR” using CONSULT.

Is DTC detected?

YES>>

Replace automatic back door control unit. Refer to Removal and Installation.

NO>>

INSPECTION END

B242f-11 Automatic Back Door Warning Buzzer Nissan Ariya: FE0

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
B242F-11 Automatic back door warning buzzer Diagnosis condition When automatic back door open/close function operate
Signal (terminal) Automatic back door warning buzzer signal
Threshold Automatic back door control unit cannot detects the automatic back door warning buzzer signal
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Automatic back door warning buzzer

  • Harness or connector (automatic back door warning buzzer circuit is shorted to ground)

  • Automatic back door control unit

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Power switch ON.

  2. Operate automatic back door.

  3. Check “Self Diagnostic Result” mode of “AUTOMATIC BACK DOOR” 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 AUTOMATIC BACK DOOR WARNING BUZZER OUTPUT SIGNAL

Check signal between automatic back door warning buzzer harness connector and ground using oscilloscope.

(+) (–) Condition

Signal

(Reference value)
Automatic back door warning buzzer
Connector Terminal
B157 1 Ground Automatic back door warning buzzer Sounding (auto open/ close operation)

Not sounding 0 – 1 V

Is the inspection result normal?

YES>>

Replace automatic back door control unit. Refer to Removal and Installation.

NO>>

GO TO 2.

CHECK AUTOMATIC BACK DOOR WARNING BUZZER OUTPUT SIGNAL CIRCUIT

  1. Power switch OFF.

  2. Disconnect automatic back door control unit connector and automatic back door warning buzzer connector.

  3. Check continuity between automatic back door control unit harness connector and ground.

    Automatic back door control unit — Continuity
    Connector Terminal
    B159 15 Ground Not existed

Is the inspection result normal?

YES>>

Check intermittent incident. Refer to Intermittent Incident.

NO>>

Repair or replace harness.

B242f-13 Automatic Back Door Warning Buzzer Nissan Ariya: FE0

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
B242F-13 Automatic back door warning buzzer Diagnosis condition When automatic back door open/close function operate
Signal (terminal) Automatic back door warning buzzer signal
Threshold Automatic back door control unit cannot detects the automatic back door warning buzzer signal
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Automatic back door warning buzzer

  • Harness or connector (automatic back door warning buzzer circuit is open or shorted)

  • Automatic back door control unit

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Power switch ON.

  2. Operate automatic back door.

  3. Check “Self Diagnostic Result” mode of “AUTOMATIC BACK DOOR” 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 AUTOMATIC BACK DOOR WARNING BUZZER OUTPUT SIGNAL

Check signal between automatic back door warning buzzer harness connector and ground using oscilloscope.

(+) (–) Condition

Signal

(Reference value)
Automatic back door warning buzzer
Connector Terminal
B157 1 Ground Automatic back door warning buzzer Sounding (auto open/ close operation)

Not sounding 0 – 1 V

Is the inspection result normal?

YES>>

Replace automatic back door control unit. Refer to Removal and Installation.

NO>>

GO TO 2.

CHECK AUTOMATIC BACK DOOR WARNING BUZZER OUTPUT SIGNAL CIRCUIT

  1. Power switch OFF.

  2. Disconnect automatic back door control unit connector and automatic back door warning buzzer connector.

  3. Check continuity between automatic back door control unit harness connector and automatic back door warning buzzer harness connector.

    Automatic back door control unit Automatic back door warning buzzer Continuity
    Connector Terminal Connector Terminal
    B159 15 B157 1 Existed

  4. Check continuity between automatic back door control unit harness connector and ground.

    Automatic back door control unit — Continuity
    Connector Terminal
    B159 15 Ground Not existed

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness.

CHECK AUTOMATIC BACK DOOR WARNING BUZZER GROUND CIRCUIT

Check continuity between automatic back door warning buzzer harness connector and ground.

Automatic back door warning buzzer — Continuity
Connector Terminal
B157 3 Ground Existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness.

CHECK AUTOMATIC BACK DOOR WARNING BUZZER

Check automatic back door warning buzzer. Refer to Component Inspection.

Is the inspection result normal?

YES>>

Check intermittent incident. Refer to Intermittent Incident.

NO>>

Replace automatic back door warning buzzer. Refer to Removal and Installation.

B2f06-11 Trunk/back Door Opener Sw Nissan Ariya first Gen

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC detecting condition
B2F06-11 Back door/trunk opener switch Diagnosis condition Power switch ON
Signal (terminal) Back door opener switch signal (BCM connector terminal: 98)
Threshold When the BCM detects back door opener switch circuit is shorted to ground
Diagnosis delay time 1 second or less

POSSIBLE CAUSE

  • Back door opener switch assembly (back door opener switch)

  • Harness or connectors [back door opener switch assembly (back door opener switch) circuit is shorted to ground]

  • BCM

FAIL-SAFE

–

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

  1. Power switch ON.

  2. Check “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 BACK DOOR OPENER INPUT SIGNAL

  1. Power switch OFF.

  2. Disconnect back door opener switch assembly connector.

  3. Check voltage between back door opener switch assembly harness connector and ground.

    (+) (–) Voltage
    Back door opener switch assembly
    Connector Terminal
    D121 1 Ground 9 – 16 V

Is the inspection result normal?

YES>>

Check intermittent incident. Refer to Intermittent Incident.

NO>>

GO TO 2.

CHECK BACK DOOR OPENER SWITCH CIRCUIT

  1. Disconnect BCM connector.

  2. Check continuity between BCM harness connector and back door opener switch assembly harness connector.

    BCM Back door opener switch assembly Continuity
    Connector Terminal Connector Terminal
    B16 98 D121 1 Existed

  3. Check continuity between BCM harness connector and ground.

    BCM — Continuity
    Connector Terminal
    B16 98 Ground Not existed

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

Repair or replace harness.

U0075-00 Communication Bus C Off Nissan Ariya first Gen

DTC Description

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
U0075-00 Control module communication Bus C Off Diagnosis condition Power switch ON
Signal (terminal) CAN communication signal
Threshold

Automatic back door control unit is unable to receive the CAN communication signal from the following control unit.

  • IPDM E/R

  • Combination meter

  • VCM

  • ABS actuator and electric unit (control unit)
Diagnosis delay time 2 seconds or more

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

Inhibit automatic back door system all function

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Power switch ON and wait for 2 seconds or more.

  2. Check “Self Diagnostic Result” mode of “AUTOMATIC BACK DOOR” 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 CAN COMMUNICATION

Check CAN communication. Refer to Trouble Diagnosis Flow Chart.

Is DTC “U0075-00” displayed?

YES>>

Repair or replace the malfunctioning part.

NO>>

Check intermittent incident. Refer to Intermittent Incident.

U2118-87 Can Comm Circuit Nissan Ariya first Gen

DTC Description

DESCRIPTION

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-Nissan Ariya vehicle multiplex communication line with high data communication speed and excellent error detection ability. Modern Nissan Ariya vehicle is equipped with many electronic control unit, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H-line, CAN L-line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only. CAN Communication Signal Chart. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
U2118-87 CAN communication error (Intelligent Key) Diagnosis condition Power switch ON
Signal (terminal) CAN communication signal
Threshold Automatic back door control unit is unable to receive the CAN communications signal from Intelligent Key unit
Diagnosis delay time 2 seconds or less

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

Inhibit automatic back door system all function

DTC CONFIRMATION PROCEDURE

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

  1. Power switch ON and wait for 2 seconds or more.

  2. Check “Self Diagnostic Result” mode of “AUTOMATIC BACK DOOR” 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 CAN COMMUNICATION

Check CAN communication. Refer to Trouble Diagnosis Flow Chart.

Is DTC “U2118-87” displayed?

YES>>

Repair or replace the malfunctioning part.

NO>>

Check intermittent incident. Refer to Intermittent Incident.

U2148-87 Can Comm Circuit. Intelligent Key Unit Nissan Ariya 2025

DTC Description

DESCRIPTION

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-Nissan Ariya vehicle multiplex communication line with high data communication speed and excellent error detection ability. Modern Nissan Ariya vehicle is equipped with many electronic control unit, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H-line, CAN L-line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only. CAN Communication Signal Chart. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
U2148-87 CAN communication error (brake control unit) Diagnosis condition Power switch ON
Signal (terminal) CAN communication signal
Threshold Intelligent Key unit cannot communicate CAN communication signal
Diagnosis delay time 2 seconds or more

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

CHECK SELF-DIAG RESULT

With CONSULT

  1. Power switch ON and wait for 2 seconds or more.

  2. Select “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 CAN COMMUNICATION

Check CAN communication. Refer to Trouble Diagnosis Flow Chart.

Is DTC “U2148-87” displayed?

YES>>

Repair or replace the malfunctioning part.

NO>>

Check intermittent incident. Refer to Intermittent Incident.

U214e-87 Can Comm Circuit. Intelligent Key Unit Nissan Ariya 1st generation

DTC Description

DESCRIPTION

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-Nissan Ariya vehicle multiplex communication line with high data communication speed and excellent error detection ability. Modern Nissan Ariya vehicle is equipped with many electronic control unit, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H-line, CAN L-line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only. CAN Communication Signal Chart. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
U214E-87 CAN communication error (combination meter) Diagnosis condition Power switch ON
Signal (terminal) CAN communication signal
Threshold Intelligent Key unit cannot communicate CAN communication signal
Diagnosis delay time 2 seconds or more

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

CHECK SELF-DIAG RESULT

With CONSULT

  1. Power switch ON and wait for 2 seconds or more.

  2. Select “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 CAN COMMUNICATION

Check CAN communication. Refer to Trouble Diagnosis Flow Chart.

Is DTC “U214E-87” displayed?

YES>>

Repair or replace the malfunctioning part.

NO>>

Check intermittent incident. Refer to Intermittent Incident.

U214f-87 Can Comm Circuit. Intelligent Key Unit Nissan Ariya 2025

DTC Description

DESCRIPTION

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-Nissan Ariya vehicle multiplex communication line with high data communication speed and excellent error detection ability. Modern Nissan Ariya vehicle is equipped with many electronic control unit, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H-line, CAN L-line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only. CAN Communication Signal Chart. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
U214F–87 CAN communication error (BCM) Diagnosis condition Power switch ON
Signal (terminal) CAN communication signal
Threshold Intelligent Key unit cannot communicate CAN communication signal
Diagnosis delay time 2 seconds or more

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

CHECK SELF-DIAG RESULT

With CONSULT

  1. Power switch ON and wait for 2 seconds or more.

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

Is DTC detected?

YES>>

Refer to Diagnosis Procedure.

NO-1>>

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

NO-2>>

Confirmation after repair: INSPECTION END

Diagnosis Procedure

CHECK CAN COMMUNICATION

Check CAN communication. Refer to Trouble Diagnosis Flow Chart.

Is DTC “U214F-87” displayed?

YES>>

Repair or replace the malfunctioning part.

NO>>

Check intermittent incident. Refer to Intermittent Incident.

U215b-87 Can Comm Circuit. Intelligent Key Unit Nissan Ariya

DTC Description

DESCRIPTION

CAN (Controller Area Network) is a serial communication line for real time applications. It is an on-Nissan Ariya vehicle multiplex communication line with high data communication speed and excellent error detection ability. Modern Nissan Ariya vehicle is equipped with many electronic control unit, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H-line, CAN L-line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only. CAN Communication Signal Chart. Refer to CAN Communication Signal Chart.

DTC DETECTION LOGIC

DTC No. CONSULT screen items DTC Detection Condition
U215B–87 CAN communication error (IPDM E/R) Diagnosis condition Power switch ON
Signal (terminal) CAN communication signal
Threshold Intelligent Key unit cannot communicate CAN communication signal
Diagnosis delay time 2 seconds or more

POSSIBLE CAUSE

CAN communication system

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

CHECK SELF-DIAG RESULT

With CONSULT

  1. Power switch ON and wait for 2 seconds or more.

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

Is DTC detected?

YES>>

Refer to Diagnosis Procedure.

NO-1>>

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

NO-2>>

Confirmation after repair: INSPECTION END

Diagnosis Procedure

CHECK CAN COMMUNICATION

Check CAN communication. Refer to Trouble Diagnosis Flow Chart.

Is DTC “U215B-87” displayed?

YES>>

Repair or replace the malfunctioning part.

NO>>

Check intermittent incident. Refer to Intermittent Incident.

Automatic Back Door Close Switch Nissan Ariya 2023

Component Function Check

CHECK FUNCTION

  1. Power switch ON.

  2. Select “AUTOMATIC BACK DOOR” using CONSULT.

  3. Select “Automatic back door close switch” in “Data Monitor” mode.

  4. Check that the function operates normally according to the following conditions.

Monitor item Condition Status
Automatic back door close switch Automatic back door close switch Pressed ON
Released OFF

Is the inspection result normal?

YES>>

Automatic back door close switch is OK.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK AUTOMATIC BACK DOOR CLOSE SWITCH INPUT SIGNAL

  1. Power switch OFF.

  2. Disconnect automatic back door close switch assembly connector.

  3. Check voltage between automatic back door close switch assembly harness connector and ground.

    (+) (–) Voltage
    Automatic back door close switch assembly
    Connector Terminal
    D135 2 Ground 9 – 16 V

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK AUTOMATIC BACK DOOR CLOSE SWITCH CIRCUIT

  1. Disconnect automatic back door control unit connector.

  2. Check continuity between automatic back door control unit harness connector and automatic back door close switch assembly harness connector.

    Automatic back door control unit Automatic back door close switch assembly Continuity
    Connector Terminal Connector Terminal
    B159 3 D135 2 Existed

  3. Check continuity between automatic back door control unit harness connector and ground.

    Automatic back door control unit — Continuity
    Connector Terminal
    B159 3 Ground Not existed

Is the inspection result normal?

YES>>

Replace automatic back door control unit. Refer to Removal and Installation.

NO>>

Repair or replace harness.

CHECK AUTOMATIC BACK DOOR CLOSE SWITCH GROUND CIRCUIT

Check continuity between automatic back door close switch assembly harness connector and ground.

Automatic back door close switch assembly — Continuity
Connector Terminal
D135 3 Ground Existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness.

CHECK AUTOMATIC BACK DOOR CLOSE SWITCH

Check automatic back door close switch. Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Replace automatic back door close switch assembly. Refer to Removal and Installation.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to Intermittent Incident.

>>

INSPECTION END

Component Inspection

CHECK AUTOMATIC BACK DOOR CLOSE SWITCH

  1. Power switch OFF.

  2. Disconnect automatic back door close switch assembly connector.

  3. Check continuity between automatic back door close switch assembly terminals.

Automatic back door close switch assembly Condition Continuity
Terminal
2 3 Automatic back door close switch Pressed Existed
Released Not existed

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace automatic back door close switch assembly. Refer to Removal and Installation.

Automatic Back Door Warning Buzzer Nissan Ariya 2023

Component Inspection

CHECK AUTOMATIC BACK DOOR WARNING BUZZER

  1. Power switch OFF.

  2. Disconnect automatic back door warning buzzer connector.

  3. Check battery power supply directly to automatic back door warning buzzer terminals and check the operation.

Automatic back door warning buzzer Operation
Terminal
(+) (-)
1 3 Buzzer sounds

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace automatic back door warning buzzer. Refer to Removal and Installation.

Back Door Switch. With Automatic Back Door System Nissan Ariya 1st generation

Component Function Check

CHECK FUNCTION

  1. Power switch ON.

  2. Select “TRUNK” of “BCM” using CONSULT.

  3. Select “Back door/trunk lid switch” in “Data Monitor” mode.

  4. Check that the function operates normally according to the following conditions.

Monitor item Condition Status
Back door/trunk lid switch Back door Open ON
Closed OFF

Is the inspection result normal?

YES >>

Back door switch is OK.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK BACK DOOR SWITCH INPUT SIGNAL

  1. Power switch OFF.

  2. Disconnect back door lock assembly connector.

  3. Check voltage between back door lock assembly harness connector and ground.

    (+) (–) Voltage
    Back door lock assembly
    Connector Terminal
    D134 7 Ground 9 – 16 V

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK BACK DOOR SWITCH CIRCUIT

  1. Disconnect BCM connector.

  2. Check continuity between back door lock assembly harness connector and BCM harness connector.

    Back door lock assembly BCM Continuity
    Connector Terminal Connector Terminal
    D134 7 B16 96 Existed

  3. Check continuity between back door lock assembly harness connector and ground.

    Back door lock assembly — Continuity
    Connector Terminal
    D134 7 Ground Not existed

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

Repair or replace harness.

CHECK BACK DOOR SWITCH GROUND CIRCUIT

  1. Disconnect automatic back door control unit connector.

  2. Check continuity between back door lock assembly harness connector and automatic back door control unit harness connector.

    Back door lock assembly Automatic back door control unit Continuity
    Connector Terminal Connector Terminal
    D134 8 B159 6 Existed

  3. Check continuity between back door lock assembly harness connector and ground.

    Back door lock assembly — Continuity
    Connector Terminal
    D134 8 Ground Not existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness.

CHECK BACK DOOR SWITCH

Check back door switch. Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Replace back door lock assembly. Refer to Removal & Installation.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to Intermittent Incident.

>>

INSPECTION END

Component Inspection

CHECK BACK DOOR SWITCH

  1. Power switch OFF.

  2. Disconnect back door lock assembly connector.

  3. Check continuity between back door lock assembly terminals.

    Back door lock assembly Condition Continuity
    Terminal
    7 8 Back door lock Open Existed
    Close Not existed

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace back door lock assembly. Refer to Removal & Installation.

Back Door Opener Actuator Nissan Ariya 2025

Component Function Check

CHECK FUNCTION

  1. Select “TRUNK” of “BCM” using CONSULT.

  2. Select “Trunk/back door” in “Active Test” mode.

  3. Check that the function operates normally according to the following conditions.

    Test item Status
    Trunk/back door ON Back door OPEN

Is the inspection result normal?

YES>>

Back door opener actuator is OK.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK BACK DOOR OPENER ACTUATOR INPUT SIGNAL

  1. Power switch OFF.

  2. Disconnect back door lock assembly connector.

  3. Check voltage between back door lock assembly harness connector and ground.

(+) (–) Condition Voltage
Back door lock assembly
Connector Terminal
D133 4 Ground Back door opener switch ON 9 – 16 V

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK BACK DOOR OPENER ACTUATOR CIRCUIT

  1. Disconnect BCM connector.

  2. Check continuity between BCM harness connector and back door lock assembly harness connector.

    BCM Back door lock assembly Continuity
    Connector Terminal Connector Terminal
    B15 145 D133 4 Existed

  3. Check continuity between BCM harness connector and ground.

    BCM — Continuity
    Connector Terminal
    B15 145 Ground Not existed

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

Repair or replace harness.

CHECK BACK DOOR OPENER ACTUATOR GROUND CIRCUIT

Check continuity between back door lock assembly harness connector and ground.

Back door lock assembly — Continuity
Connector Terminal
D133 3 Ground Existed

Is the inspection normal?

YES>>

Replace back door lock assembly. Refer to Removal & Installation.

NO>>

Repair or replace harness.

Back Door Request Switch Nissan Ariya

Component Inspection

CHECK BACK DOOR REQUEST SWITCH

  1. Power switch OFF.

  2. Disconnect back door opener switch assembly connector.

  3. Check continuity between back door opener switch assembly terminals.

Back door opener switch assembly Condition Continuity
Terminal
4 3 Back door request switch Pressed Existed
Released Not existed

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace back door opener switch assembly. Refer to Removal and Installation.

Door Lock Actuator. Driver Side Nissan Ariya

Diagnosis Procedure

CHECK DOOR LOCK ACTUATOR INPUT SIGNAL

  1. Power switch OFF.

  2. Disconnect front door lock assembly (driver side) connector.

  3. Check voltage between front door lock assembly (driver side) harness connector and ground.

    (+) (–) Condition Voltage
    Front door lock assembly (driver side)
    Connector Terminal
    D65 2 Ground Door lock and unlock switch Lock 9 – 16 V
    1 Unlock

Is the inspection result normal?

YES>>

Replace front door lock assembly (driver side). Refer to Removal & Installation.

NO>>

GO TO 2.

CHECK DOOR LOCK ACTUATOR CIRCUIT

  1. Disconnect BCM and rear door lock assembly LH connector.

  2. Check continuity between BCM harness connector and front door lock assembly (driver side) harness connector.

    BCM Front door lock assembly (driver side) Continuity
    Connector Terminal Connector Terminal
    B14 134 D65 1 Existed
    142 2

  3. Check continuity between BCM harness connector and ground.

    BCM — Continuity
    Connector Terminal
    B14 134 Ground Not existed
    142

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace harness.

CHECK BCM OUTPUT SIGNAL

  1. Connect BCM connector.

  2. Check voltage between BCM harness connector and ground.

(+) (–) Condition Voltage
BCM
Connector Terminal
B14 142 Ground Door lock and unlock switch Lock 9 – 16 V
134 Unlock

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace BCM. Refer to Removal and Installation.

Door Lock and Unlock Switch. Driver Side Nissan Ariya

Component Function Check

CHECK FUNCTION

  1. Power switch ON.

  2. Select “INT LAMP” of “BCM” using CONSULT.

  3. Select “Door lock and unlock switch (lock)”, “Door lock and unlock switch (unlock)” in “Data Monitor” mode.

  4. Check that the function operates normally according to the following conditions.

Monitor item Condition Status
Door lock and unlock switch (lock) Door lock and unlock switch (driver door) LOCK ON
UNLOCK OFF
Door lock and unlock switch (unlock) LOCK OFF
UNLOCK ON

Is the inspection result normal?

YES>>

Door lock and unlock switch (driver door) is OK.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK DOOR LOCK AND UNLOCK SWITCH INPUT SIGNAL

  1. Power switch OFF.

  2. Disconnect door lock and unlock switch (driver side) connector.

  3. Check voltage between door lock and unlock switch (driver side) harness connector and ground.

    (+) (–) Voltage
    Door lock and unlock switch (driver side)
    Connector Terminal
    D46 1 Ground 9 – 16 V
    2

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK DOOR LOCK AND UNLOCK SWITCH CIRCUIT

  1. Disconnect BCM connector.

  2. Check continuity between BCM harness connector and door lock and unlock switch (driver side) harness connector.

    BCM Door lock and unlock switch (driver side) Continuity
    Connector Terminal Connector Terminal
    M8 11 D46 2 Existed
    14 1

  3. Check continuity between BCM harness connector and ground.

    BCM — Continuity
    Connector Terminal
    M8 11 Ground Not existed
    14

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

Repair or replace harness.

CHECK DOOR LOCK AND UNLOCK SWITCH GROUND

Check continuity between door lock and unlock switch (driver side) harness connector and ground.

Door lock and unlock switch (driver side) — Continuity
Connector Terminal
D46 4 Ground Existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness.

CHECK DOOR LOCK AND UNLOCK SWITCH

Check door lock and unlock switch (driver side). Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Replace door lock and unlock switch (driver side). Refer to Removal and Installation.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to Intermittent Incident.

>>

INSPECTION END

Component Inspection

CHECK DOOR LOCK AND UNLOCK SWITCH

  1. Power switch OFF.

  2. Disconnect door lock and unlock switch (driver side) connector.

  3. Check continuity between door lock and unlock switch (driver side) terminals.

Door lock and unlock switch (driver side) Condition Continuity
Terminal
2 4 Door lock and unlock switch (driver side) LOCK Existed
UNLOCK Not existed
1 LOCK Not existed
UNLOCK Existed

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace door lock and unlock switch (driver side). Refer to Removal and Installation.

Door Switch Nissan Ariya first Gen

Component Function Check

CHECK FUNCTION

  1. Select “DOOR LOCK” of “BCM” using CONSULT.

  2. Select “Door switch driver”, “Door switch assist”, “Door switch rear left” and “Door switch rear right” in “Data Monitor” mode.

  3. Check that the function operates normally according to the following conditions.

Monitor item Condition Status
Door switch driver Driver side door Open ON
Closed OFF
Door switch assist Passenger side door Open ON
Closed OFF
Door switch rear left Rear door LH Open ON
Closed OFF
Door switch rear right Rear door RH Open ON
Closed OFF

Is the inspection result normal?

YES >>

Door switch is OK.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK DOOR SWITCH INPUT SIGNAL

  1. Power switch OFF.

  2. Disconnect malfunctioning door lock assembly connector.

  3. Check voltage between malfunctioning door lock assembly harness connector and ground.

    (+) (–) Voltage
    Door lock assembly
    Connector Terminal
    Driver side D65 5 Ground 9 – 16 V
    Passenger side D25 8
    Rear LH D102 5
    Rear RH D82 8

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK DOOR SWITCH CIRCUIT

  1. Disconnect BCM connector.

  2. Check continuity between door lock assembly harness connector and BCM harness connector.

    Door lock assembly BCM Continuity
    Connector Terminal Connector Terminal
    Driver side D65 5 B16 81 Existed
    Passenger side D25 8 93
    Rear LH D102 5 94
    Rear RH D82 8 95

  3. Check continuity between door lock assembly harness connector and ground.

    Door lock assembly — Continuity
    Connector Terminal
    Driver side D65 5 Ground Not existed
    Passenger side D25 8
    Rear LH D102 5
    Rear RH D82 8

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

Repair or replace harness.

CHECK DOOR SWITCH GROUND CIRCUIT

Check continuity between door lock assembly harness connector and ground.

Door lock assembly — Continuity
Connector Terminal
Driver side D65 6 Ground Existed
Passenger side D25 7
Rear LH D102 6
Rear RH D82 7

YES>>

GO TO 4.

NO>>

Repair or replace harness.

CHECK DOOR SWITCH

Check door switch. Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Replace malfunctioning door lock assembly.

  • FRONT: Refer to Removal & Installation

    .

  • REAR: Refer to Removal & Installation

    .

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to Intermittent Incident.

>>

INSPECTION END

Component Inspection

CHECK DOOR SWITCH

  1. Power switch OFF.

  2. Disconnect malfunctioning door lock assembly connector.

  3. Check continuity between door lock assembly terminals.

    Door lock assembly Condition Continuity
    Terminal
    Driver side 5 6 Door Closed Not existed
    Opened Existed
    Passenger side 7 8 Closed Not existed
    Opened Existed
    Rear LH 5 6 Closed Not existed
    Opened Existed
    Rear RH 7 8 Closed Not existed
    Opened Existed

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace malfunctioning door lock assembly.

  • FRONT: Refer to Removal & Installation

    .

  • REAR: Refer to Removal & Installation

    .

Hazard Function Nissan Ariya SUV

Component Function Check

CHECK FUNCTION

  1. Select “FLASHER” of “BCM” using CONSULT.

  2. Select “Flasher” in “Active Test” mode.

  3. Touch “LH” or “RH” to check that it works normally.

Is the inspection result normal?

YES>>

Hazard warning lamp circuit is OK.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK HAZARD OPERATION

Check hazard operation. Refer to System Description.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Refer to Symptom Table.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to Intermittent Incident.

>>

INSPECTION END

Intelligent Key Battery Nissan Ariya: FE0

Component Inspection

CHECK INTELLIGENT KEY BATTERY

Check by connecting a resistance (approximately 300 Ω) so that the current value becomes about 10 mA. Refer to Removal and Installation.

Standard : Approx. 2.5 - 3.0 V

Is the measurement value within the specification?

YES>>

INSPECTION END

NO>>

Replace Intelligent Key battery.

Intelligent Key Warning Buzzer Nissan Ariya 2025

Diagnosis Procedure

CHECK INTELLIGENT KEY WARNING BUZZER POWER SUPPLY CIRCUIT

  1. Power switch OFF.

  2. Check signal between Intelligent Key warning buzzer harness connector and ground using oscilloscope.

    (+) (–) Condition Signal (Reference value)
    Intelligent Key warning buzzer
    Connector Terminal
    E26 1 Ground Intelligent Key warning buzzer

    Sounding

    NOTE:

    The pulse cycle changes depending on buzzer sounds.

    Not sounding 0 V

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK INTELLIGENT KEY WARNING BUZZER CIRCUIT

  1. Disconnect Intelligent Key unit and Intelligent Key warning buzzer connector.

  2. Check continuity between Intelligent Key unit harness connector and Intelligent Key warning buzzer harness connector.

    Intelligent Key unit Intelligent Key warning buzzer Continuity
    Connector Terminal Connector Terminal
    M79 3 E26 1 Existed

  3. Check continuity between Intelligent Key unit harness connector and ground.

    Intelligent Key unit — Continuity
    Connector Terminal
    M79 3 Ground Not existed

Is the inspection result normal?

YES>>

Replace Intelligent Key unit. Refer to Removal and Installation.

NO>>

Repair or replace harness.

CHECK INTELLIGENT KEY WARNING BUZZER GROUND CIRCUIT

  1. Disconnect Intelligent Key warning buzzer connector.

  2. Check continuity between Intelligent Key warning buzzer harness connector and ground.

    Intelligent Key warning buzzer — Continuity
    Connector Terminal
    E26 2 Ground Existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness.

CHECK INTELLIGENT KEY WARNING BUZZER

Check Intelligent Key warning buzzer. Refer to Component Inspection.

Is the inspection result normal?

YES>>

Check intermittent incident. Refer to Intermittent Incident.

NO>>

Replace Intelligent Key warning buzzer. Refer to Removal and Installation.

Component Inspection

CHECK INTELLIGENT KEY WARNING BUZZER

  1. Power switch OFF.

  2. Disconnect Intelligent Key warning buzzer connector.

  3. Connect battery power supply directly to Intelligent Key warning buzzer terminals and check the operation.

    Intelligent Key warning buzzer Operation
    Terminal
    (+) (−)
    1 2 Buzzer sounds

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace Intelligent Key warning buzzer. Refer to Removal and Installation.

Touch Sensor Nissan Ariya 2023

Component Inspection

CHECK TOUCH SENSOR

  1. Power switch OFF.

  2. Disconnect touch sensor connector.

  3. Check resistance between touch sensor terminals.

Touch sensor Condition Resistance
Terminal
1 2 Touch sensor Detect obstruction 400 Ω or less
Other than above 0.95 – 1.05 kΩ

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace touch sensor. Refer to Removal & Installation.

Unlock Sensor Nissan Ariya 2025

Diagnosis Procedure

CHECK UNLOCK SENSOR INPUT SIGNAL

  1. Power switch OFF.

  2. Disconnect front door lock assembly (driver side) connector.

  3. Check voltage between front door lock assembly (driver side) harness connector and ground.

    (+) (–) Voltage
    Front door lock assembly (driver side)
    Connector Terminal
    D65 7 Ground 9 – 16 V

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 2.

CHECK UNLOCK SENSOR CIRCUIT

  1. Disconnect BCM connector.

  2. Check continuity between BCM harness connector and front door lock assembly (driver side) harness connector.

    BCM Front door lock assembly (driver side) Continuity
    Connector Terminal Connector Terminal
    M8 10 D65 7 Existed

  3. Check continuity between BCM harness connector and ground.

    BCM — Continuity
    Connector Terminal
    M8 10 Ground Not existed

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

Repair or replace harness.

CHECK UNLOCK SENSOR GROUND CIRCUIT

Check continuity between front door lock assembly (driver side) harness connector and ground.

Front door lock assembly (driver side) — Continuity
Connector Terminal
D65 6 Ground Existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness.

CHECK UNLOCK SENSOR

Check unlock sensor. Refer to Component Inspection.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Replace front door lock assembly (driver side). Refer to Removal & Installation.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to Intermittent Incident.

>>

INSPECTION END

Component Inspection

CHECK UNLOCK SENSOR

  1. Power switch OFF.

  2. Disconnect front door lock assembly (driver side) connector.

  3. Check continuity between front door lock assembly (driver side) terminals.

Front door lock assembly (driver side) Condition Continuity
Terminal
6 7 Driver door Unlock Existed
Lock Not existed

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace front door lock assembly (driver side). Refer to Removal & Installation.

Serial Signal Circuit Nissan Ariya 2023

Diagnosis Procedure

CHECK AUTOMATIC BACK DOOR SERIAL COMMUNICATION SIGNAL

  1. Power switch ON.

  2. Check signal between BCM harness connector and ground using oscilloscope.

    (+) (–)

    Signal

    (Reference value)
    BCM
    Connector Terminal
    B16 83 Ground

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 2.

CHECK AUTOMATIC BACK DOOR SERIAL COMMUNICATION CIRCUIT

  1. Power switch OFF.

  2. Disconnect hands free sensor control unit connector and BCM connector.

  3. Check continuity between hands free sensor control unit harness connector and BCM harness connector.

    Hands free sensor control unit BCM Continuity
    Connector Terminal Connector Terminal
    B252 1 B16 83 Existed

  4. Check continuity between hands free sensor control unit harness connector and ground.

    Hands free sensor control unit — Continuity
    Connector Terminal
    B252 1 Ground Not existed

Is the inspection result normal?

YES>>

Replace BCM. Refer to Removal and Installation.

NO>>

Repair or replace harness.

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

Dtc/circuit Diagnosis

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