Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: Rear Window Defogger Relay

Nissan Rogue (T33) 2021-Present Service Manual / Driver Controls :: Defogger / Dtc/circuit Diagnosis :: Rear Window Defogger Relay

Component Function Check

CHECK REAR WINDOW DEFOGGER RELAY CONTROL FUNCTION

CONSULT

  1. Ignition switch ON.

  2. Select “Rear defogger” in “Active test” mode of "BCM".

  3. Touch “On”.

  4. 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. Ignition switch OFF.

  2. Disconnect BCM connector.

  3. Ignition switch ON.

  4. Check voltage between BCM harness connector and ground.

    (+) (-)

    Voltage

    (Approx.)
    BCM
    Connector Terminal
    M19 (with type B meter) 63 Ground Battery voltage
    M51 (with type A meter) 35

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 2.

CHECK REAR WINDOW DEFOGGER RELAY (COIL SIDE) CIRCUIT 2

  1. Ignition switch OFF.

  2. Remove rear window defogger relay.

  3. Ignition switch ON.

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

    (+) (-)

    Voltage

    (Approx.)
    Rear window defogger relay
    Location Terminal
    J ‐ 4 2 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. Ignition 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.

    Rear window defogger relay Fuse block (J/B) Continuity
    Location Terminal Connector Terminal
    J ‐ 4 1 M68 16F Yes

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair or replace harness.

CHECK REAR WINDOW DEFOGGER RELAY (COIL SIDE) CIRCUIT 4

  1. Ignition 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
M19 (with type B meter) 63 M68 16F Yes
M51 (with type B meter) 35

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

Repair or replace harness.

CHECK REAR WINDOW DEFOGGER RELAY (SWITCH SIDE) CIRCUIT 1

  1. Ignition switch OFF.

  2. Remove rear window defogger relay.

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

    (+) (-)

    Voltage

    (Approx.)
    Rear window defogger relay
    Location Terminal
    J ‐ 4 3 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) Rear window defogger relay Continuity
    Connector Terminal Location Terminal
    B28 1L J ‐ 4 5 Yes

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. Ignition 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 . Yes
No current supply No

Is the inspection result normal?

YES>>

Inspection End.

NO>>

Replace rear window defogger relay.

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