english german french spanish
Nissan

Nissan Ariya: Dtc/circuit Diagnosis

Nissan Ariya (FE0) 2023-2025 Service & Repair Manual / Driver Controls / Defogger / Dtc/circuit Diagnosis

Rear Window Defogger Switch

Component Function Check

CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION

Check that the rear window defogger switch illumination orange when rear window defogger switch ON.

Is the inspection result normal?

YES>>

Rear window defogger switch function is OK.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

REPLACE A/C CONTROL

  1. Power switch OFF.

  2. Replace A/C control (rear window defogger switch). Refer to Removal & Installation.

  3. Set the Nissan Ariya vehicle to READY.

  4. Operate rear window defogger switch and check the operating condition.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 2.

REPLACE A/C AUTO AMP.

  1. Power switch OFF.

  2. Replace A/C auto amp. Refer to Removal & Installation.

  3. Set the Nissan Ariya vehicle to READY.

  4. Operate rear window defogger switch and check the operating condition.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace BCM. Refer to Removal and Installation.

Rear Window Defogger Relay

Component Function Check

CHECK REAR WINDOW DEFOGGER RELAY CONTROL FUNCTION

With CONSULT

  1. Power switch ON.

  2. Select “REAR DEFOGGER” of “BCM” with CONSULT.

  3. Select “Rear defogger” in “Active test” mode.

  4. Touch “ON”.

  5. Check that the back door window glass is getting warmer.

    NOTE:

    When glass is hot, never start inspection until it is cool enough.

Is the inspection result normal?

YES>>

Rear window defogger relay control function is OK.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK REAR WINDOW DEFOGGER RELAY (COIL SIDE) CIRCUIT 1

  1. Power switch OFF.

  2. Disconnect BCM connector.

  3. Power switch ON.

  4. Check voltage between BCM harness connector and ground.

    (+) (-) Voltage
    BCM
    Connector Terminal
    M7 63 Ground Battery voltage

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 2.

CHECK REAR WINDOW DEFOGGER RELAY (COIL SIDE) CIRCUIT 2

  1. Power switch OFF.

  2. Remove rear window defogger relay.

  3. Power switch ON.

  4. Check voltage between rear window defogger relay terminal and ground.

    (+) (-) Voltage
    Fuse block (J/B)
    Terminal
    Coil upstream side of rear window defogger Ground Battery voltage

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace the malfunctioning parts.

CHECK REAR WINDOW DEFOGGER RELAY (COIL SIDE) CIRCUIT 3

  1. Power switch OFF.

  2. Disconnect fuse block (J/B) connector.

  3. Check continuity between rear window defogger relay terminal and fuse block (J/B) harness connector.

    Fuse block (J/B) Fuse block (J/B) Continuity
    Terminal Connector Terminal
    Coil downstream side of rear window defogger relay M72 125 Existed

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness.

CHECK REAR WINDOW DEFOGGER RELAY (COIL SIDE) CIRCUIT 4

  1. Power switch OFF.

  2. Check continuity between BCM harness connector and fuse block (J/B) harness connector.

BCM Fuse block (J/B) Continuity
Connector Terminal Connector Terminal
M7 63 M72 125 Existed

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair or replace harness.

CHECK REAR WINDOW DEFOGGER RELAY (SWITCH SIDE) CIRCUIT 1

  1. Power switch OFF.

  2. Remove rear window defogger relay.

  3. Check voltage between rear window defogger relay terminal and ground.

    (+) (-) Voltage
    Fuse block (J/B)
    Terminal
    Switch upstream side of rear window defogger relay Ground Battery voltage

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace the malfunctioning parts.

CHECK REAR WINDOW DEFOGGER RELAY (SWITCH SIDE) CIRCUIT 2

  1. Disconnect fuse block (J/B) connector.

  2. Check continuity between fuse block (J/B) harness connector and rear window defogger relay terminal.

    Fuse block (J/B) Fuse block (J/B) Continuity
    Connector Terminal Terminal
    B109 1 Switch downstream side of rear window defogger relay Existed

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair or replace fuse block (J/B).

CHECK REAR WINDOW DEFOGGER RELAY

Check rear window defogger relay. Refer to Component Inspection.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace rear window defogger relay.

Component Inspection

CHECK REAR WINDOW DEFOGGER RELAY

  1. Power switch OFF.

  2. Remove rear window defogger relay.

  3. Check continuity between rear window defogger relay terminals.

Terminal Condition Continuity

Rear window

defogger relay
12 V direct current supply between terminals and . Existed
No current supply Not existed

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace rear window defogger relay.

Rear Window Defogger

Component Function Check

CHECK REAR WINDOW DEFOGGER FUNCTION

With CONSULT

  1. Power switch ON.

  2. Select “REAR DEFOGGER” of “BCM” with CONSULT.

  3. Select “Rear defogger” in “Active test” mode.

  4. Touch “ON”.

  5. Check that the back door window glass is getting warmer.

    NOTE:

    When glass is hot, never start inspection until it is cool enough.

Is the inspection result normal?

YES>>

Rear window defogger function is OK.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK FUSE

  1. Power switch OFF.

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

Unit Location Fuse No. Capacity
Condenser Fuse block (J/B) #11 30A

Is the fuse blown (open) ?

YES>>

Replace the blown (open) fuse after repairing the affected circuit if a fuse is blown (open).

NO>>

GO TO 2.

CHECK REAR WINDOW DEFOGGER POWER SUPPLY CIRCUIT

  1. Set the Nissan Ariya vehicle to READY.

  2. Check voltage between rear window defogger harness connector and ground.

    (+) (–) Condition

    Voltage (V)

    (Approx.)
    Rear window defogger
    Connector Terminal
    D163 1 Ground Rear window defogger switch ON Battery voltage
    OFF 0

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

GO TO 4.

CHECK REAR WINDOW DEFOGGER GROUND CIRCUIT

  1. Power switch OFF.

  2. Disconnect rear window defogger connector.

  3. Check continuity between rear window defogger harness connector and ground.

    Rear window defogger — Continuity
    Connector Terminal
    D136 2 Ground Existed

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair or replace harness.

CHECK REAR WINDOW DEFOGGER CIRCUIT 1

  1. Power switch OFF.

  2. Disconnect condenser connector and rear window defogger connector.

  3. Check continuity between condenser harness connector and rear window defogger harness connector.

    Condenser Rear window defogger Continuity
    Connector Terminal Connector Terminal
    D162 2 D163 1 Existed

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace harness.

CHECK REAR WINDOW DEFOGGER CIRCUIT 2

  1. Disconnect fuse block (J/B) connector.

  2. Check continuity between condenser harness connector and fuse block (J/B) harness connector.

    Condenser Fuse block (J/B) Continuity
    Connector Terminal Connector Terminal
    D137 1 B109 1 Existed

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace harness.

CHECK CONDENSER

Check condenser. Refer to Component Inspection.

Is the inspection result normal?

YES>>

Replace fuse block (J/B).

NO>>

Replace rear window defogger condenser.

CHECK FILAMENT

Check the filament for damage or blown. Refer to Inspection.

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Repair filament.

Component Inspection

CHECK CONDENSER

  1. Power switch OFF.

  2. Disconnect condenser connector.

  3. Check continuity between condenser terminals.

    Terminal Continuity
    1 2 Existed

  4. Check continuity between condenser and ground part of condenser.

    Condenser — Continuity
    Terminal
    1 Ground part of condenser Not existed

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Replace condenser. Refer to Removal and Installation.

Door Mirror Defogger

Component Function Check

CHECK DOOR MIRROR DEFOGGER FUNCTION

With CONSULT

  1. Power switch ON.

  2. Select “REAR DEFOGGER” of “BCM” with CONSULT.

  3. Select “Rear defogger” in “Active test” mode.

  4. Touch “ON”.

  5. Check that both side door mirror glasses are getting warmer.

    NOTE:

    When glass is hot, never start inspection until it is cool enough.

Is the inspection result normal?

YES>>

Door mirror defogger function is OK.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK FUSE

  1. Power switch OFF.

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

    Unit Location Fuse No. Capacity
    Door mirror defogger Fuse block (J/B) #10 10A

Is the fuse blown (open)?

YES>>

Replace the blown (open) fuse after repairing the affected circuit if a fuse is blown (open).

NO>>

GO TO 2.

CHECK DOOR MIRROR (DRIVER SIDE) POWER SUPPLY CIRCUIT 1

  1. Disconnect door mirror (driver side) connector.

  2. Set the Nissan Ariya vehicle to READY.

  3. Check voltage between door mirror (driver side) harness connector and ground.

    (+) (–) Condition

    Voltage (V)

    (Approx.)
    Door mirror (driver side)
    Connector Terminal
    D64 10 Ground Rear window defogger switch ON Battery voltage
    OFF 0

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

GO TO 3.

CHECK DOOR MIRROR (DRIVER SIDE) POWER SUPPLY CIRCUIT 2

  1. Power switch OFF.

  2. Disconnect fuse block (J/B) connector.

  3. Check continuity between fuse block (J/B) harness connector and door mirror (driver side) harness connector.

    Fuse block (J/B) Door mirror (driver side) Continuity
    Connector Terminal Connector Terminal
    B111 45 D64 10 Existed

Is the inspection result normal?

YES>>

Replace fuse block (J/B).

NO>>

Repair or replace harness.

Driver Side Door Mirror Defogger Circuit

Component Function Check

CHECK DRIVER SIDE DOOR MIRROR DEFOGGER FUNCTION

With CONSULT

  1. Power switch ON.

  2. Select “REAR DEFOGGER” of “BCM” with CONSULT.

  3. Select “Rear defogger” in “Active test” mode.

  4. Touch “ON”.

  5. Check that the driver side door mirror glass is getting warmer.

    NOTE:

    When glass is hot, never start inspection until it is cool enough.

Is the inspection result normal?

YES>>

Door mirror defogger (driver side) function is OK.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK DOOR MIRROR (DRIVER SIDE) POWER SUPPLY CIRCUIT

  1. Power switch OFF.

  2. Disconnect door mirror (driver side) connector.

  3. Set the Nissan Ariya vehicle to READY.

  4. Check voltage between door mirror (driver side) harness connector and ground.

    (+) (-) Condition

    Voltage (V)

    (Approx.)
    Door mirror (driver side)
    Connector Terminal
    D64 10 Ground Rear window defogger switch ON Battery voltage
    OFF 0

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Repair or replace harness.

CHECK DOOR MIRROR (DRIVER SIDE) GROUND CIRCUIT

  1. Power switch OFF.

  2. Check continuity between door mirror (driver side) harness connector and ground.

    Door mirror (driver side) — Continuity
    Connector Terminal
    D64 11 Ground Existed

Is the inspection result normal?

YES>>

Replace glass mirror (driver side). Refer to Removal & Installation.

NO>>

Repair or replace harness.

 
next pagenext pageWiper and Washer System SymptomsSymptom 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