LEMON Manuals: Even more car manuals for everyone
Home >> Infiniti >> 2018 >> Q70 5.6 Luxe, RWD >> Repair and Diagnosis >> Body & Frame >> Seats >> Automatic Drive Positioner (DTC/Circuit Diagnosis) (Except Hybrid) >> DTC/Circuit Diagnosis >> Lifting Motor (Front) >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK LIFTING MOTOR (FRONT) POWER SUPPLY 
    1. Turn Ignition Switch OFF.
    2. Disconnect lifting motor (front) connector.
    3. Turn Ignition Switch ON.
    4. Perform "Active test" ("SEAT LIFTER FR") with CONSULT.
    5. Check voltage between lifting motor (front) harness connector and ground.

      (+)

      (-)

      Condition

      Voltage (V)

      (Approx.)

      Lifting motor (front)

      Connector

      Terminals

      B512

      9

      Ground

      SEAT LIFTER FR

      OFF

      0

      UP

      12

      DWN (DOWN)

      0

      10

      OFF

      0

      UP

      0

      DWN (DOWN)

      12

    Is the inspection result normal?

    YES

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

    NO

    GO TO 2.

  2. CHECK LIFTING MOTOR (FRONT) 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 (front) harness connector.

      Driver Seat Control Unit

      Lifting motor (front)

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      B513

      9

      B512

      9

      Existed

      10

      10

    4. Check continuity between Driver Seat Control Unit harness connector and ground.

      Driver Seat Control Unit

      Ground

      Continuity

      Connector

      Terminal

      B513

      9

      Not existed

      10

    Is the inspection result normal?

    YES

    Replace Driver Seat Control Unit. Refer to Removal and Installation .

    NO

    Repair or replace harness or connector.