Nissan Rogue (T33) 2021-Present Service Manual: Dtc/circuit Diagnosis :: Front Seat Heater Rh

Nissan Rogue (T33) 2021-Present Service Manual / Body Interior :: Seat / Dtc/circuit Diagnosis :: Front Seat Heater Rh

Component Function Check

CHECK FRONT SEAT HEATER RH FUNCTION

  1. Start the engine.

  2. Check that seat cushion and seat back of front seat RH warms when operating front seat heater switch RH.

Is the inspection result normal?

YES>>

Front seat heater RH function is OK.

NO>>

Refer to Diagnosis Procedure.

Diagnosis Procedure

CHECK FUSE

  1. Ignition switch OFF.

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

    Unit Location Fuse No. Capacity
    Ignition switch power supply Fuse block (J/B) 67 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 FRONT SEAT HEATER RH POWER SUPPLY VOLTAGE

  1. Disconnect front seat heater RH connector.

  2. Start the engine.

  3. Check voltage between front seat heater RH harness connector and ground.

    (+) (-)

    Voltage

    (Approx.)
    Front seat heater RH
    Connector Terminal
    B304 1 Ground Battery voltage

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair the harness or connector.

CHECK FRONT SEAT HEATER RH GROUND CIRCUIT (OPEN)

  1. Ignition switch OFF.

  2. Check continuity between front seat heater RH harness connector and ground.

    Front seat heater RH — Continuity
    Connector Terminal
    B304 2 Ground Yes
    4

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

Repair the harness or connector.

CHECK FRONT SEAT HEATER RH LIN SIGNAL

  1. Ignition switch ON.

  2. Confirm output waveform between A/C amp. harness connector and ground with oscilloscope.

    (+) (–) Output waveform
    Front seat heater RH
    Connector Terminal
    B304 3 Ground

Is the inspection result normal?

YES>>

GO TO 7.

NO>>

GO TO 5.

CHECK FRONT SEAT HEATER RH LIN SIGNAL CIRCUIT (OPEN)

  1. Ignition switch OFF.

  2. Disconnect A/C amp. connector.

  3. Check continuity between front seat heater RH harness connector and A/C amp. harness connector.

    Front seat heater RH A/C amp. Continuity
    Connector Terminal Connector Terminal
    B304 3 M55 45 Yes

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair the harness or connector.

CHECK FRONT SEAT HEATER RH LIN SIGNAL CIRCUIT (SHORT TO GROUND)

  1. Disconnect following connectors:

    • Front seat heater LH

    • Rear seat heater LH

    • Rear seat heater RH

  2. Check continuity between front seat heater RH harness connector and ground.

    Front seat heater RH — Continuity
    Connector Terminal
    B304 3 Ground No

Is the inspection result normal?

YES>>

Replace A/C amp. Refer to Removal and Installation.

NO>>

Repair the harness or connector.

CHECK FRONT SEAT BACK HEATER RH CIRCUIT (OPEN)

  1. Ignition switch OFF.

  2. Check continuity between front seat back heater RH harness connector and front seat heater RH harness connector.

    Front seat back heater RH Front seat heater RH Continuity
    Connector Terminal Connector Terminal
    B309 2 B320 1 Yes

Is the inspection result normal?

YES>>

GO TO 8.

NO>>

Replace seat cushion heater RH. Refer to Disassembly and Assembly.

CHECK FRONT SEAT BACK HEATER RH GROUND CIRCUIT (OPEN)

  1. Disconnect front seat back heater RH connector.

  2. Check continuity between front seat back heater RH harness connector and front seat heater RH harness connector.

    Front seat back heater RH Front seat heater RH Continuity
    Connector Terminal Connector Terminal
    B309 1 B320 4 Yes

Is the inspection result normal?

YES>>

Replace front seat back heater RH. Refer to Disassembly and Assembly.

NO>>

Replace seat cushion heater RH. Refer to Disassembly and Assembly.

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