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Home >> Infiniti >> 2016 >> Q50 Base, RWD >> Repair and Diagnosis >> Body & Frame >> Seats >> Automatic Drive Positioner (DTC/Circuit Diagnosis) (Except Hybrid) >> DTC/Circuit Diagnosis >> Lifting Motor (Rear) >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK LIFTING MOTOR (REAR) POWER SUPPLY

    1. Turn ignition switch OFF.
    2. Disconnect lifting motor (rear) connector.
    3. Turn ignition switch ON.
    4. Perform "Active test" ("SEAT LIFTER RR") with CONSULT.
    5. Check voltage between lifting motor (rear) harness connector and ground.
      (+) (-) Condition Voltage (V)
      Lifting motor (rear)
      Connector Terminal
      B606 42 Ground SEAT LIFTER RR OFF 0 - 1
      UP 0 - 1
      DWN (DOWN) 9 - 16
      41 OFF 0 - 1
      UP 9 - 16
      DWN (DOWN) 0 - 1

    Is the inspection result normal?

    YES 

    Replace lifting motor (rear) (built in seat cushion frame).

    NO 

    GO TO STEP 2  .

  2. CHECK LIFTING MOTOR (REAR) CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect driver seat control unit connector.
    3. Check continuity between driver seat control unit harness connector and lifting motor (rear) harness connector.
      Driver seat control unit Lifting motor (rear) Continuity
      Connector Terminal Connector Terminal
      B602 42 B606 42 Existed
      41 41
    4. Check continuity between driver seat control unit harness connector and ground.
      Driver seat control unit Ground Continuity
      Connector Terminal
      B602 42 Not existed
      41

    Is the inspection result normal?

    YES 

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

    NO 

    Repair or replace harness or connector.