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Home >> Infiniti >> 2017 >> Q50 Base, RWD >> Repair and Diagnosis >> Body & Frame >> Seats >> Automatic Drive Positioner (DTC/Circuit Diagnosis) (Except Hybrid) >> DTC/Circuit Diagnosis >> Reclining Sensor >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK RECLINING SENSOR SIGNAL

    1. Turn ignition switch ON.
    2. Read voltage signal between driver seat control unit harness connector and ground with oscilloscope.
      (+) (-) Condition Signal
      (Reference value)
      Driver seat control unit
      Connector Terminals
      B601 4 Ground Seat reclining Operate
      GNSJMJIA0119ZZ-119Courtesy of NISSAN NORTH AMERICA, INC.
      Other than the above 0 or 5

    Is the inspection result normal?

    YES 

    Replace driver seat control unit. Refer to REMOVAL AND INSTALLATION .

    NO 

    GO TO STEP 2  .

  2. CHECK RECLINING SENSOR CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect driver seat control unit and reclining motor connector.
    3. Check continuity between driver seat control unit harness connector and reclining motor harness connector.
      Driver seat control unit Reclining motor Continuity
      Connector Terminal Connector Terminal
      B601 4 B605 4 Existed
    4. Check continuity between driver seat control unit harness connector and ground.
      Driver seat control unit Ground Continuity
      Connector Terminal
      B601 4 Not existed

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Repair or replace harness or connector.

  3. CHECK RECLINING SENSOR POWER SUPPLY

    1. Connect driver seat control unit connector.
    2. Turn ignition switch ON.
    3. Check voltage between reclining motor harness connector and ground.
      (+) (-) Voltage (V)
      Reclining motor
      Connector Terminals
      B605 12 Ground 9 - 16

    Is the inspection result normal?

    YES 

    GO TO STEP 5  .

    NO 

    GO TO STEP 4  .

  4. CHECK RECLINING SENSOR POWER SUPPLY CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect driver seat control unit connector.
    3. Check continuity between driver seat control unit harness connector and reclining motor harness connector.
      Driver seat control unit Reclining motor Continuity
      Connector Terminal Connector Terminal
      B601 12 B605 12 Existed
    4. Check continuity between driver seat control unit harness connector and ground.
      Driver seat control unit Ground Continuity
      Connector Terminal
      B601 12 Not existed

    Is the inspection result normal?

    YES 

    Replace driver seat control unit. Refer to REMOVAL AND INSTALLATION .

    NO 

    Repair or replace harness or connector.

  5. CHECK RECLINING SENSOR GROUND

    1. Turn ignition switch OFF.
    2. Check continuity between reclining motor harness connector and ground.
      Reclining motor Ground Continuity
      Connector Terminal
      B605 43 Existed

    Is the inspection result normal?

    YES 

    Replace reclining motor.

    NO 

    Repair or replace harness or connector.

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