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Home >> Infiniti >> 2006 >> FX45 >> Repair and Diagnosis >> Body & Frame >> Seats >> Automatic Drive Positioner >> Check Front Lifting Motor Circuit

Check Front Lifting Motor Circuit

  1. CHECK FRONT LIFTING MECHANISM 

    Check the following.

    • Operation malfunction caused by lifter mechanism deformation or pinched harness or other foreign materials
    • Operation malfunction caused by foreign materials adhered to the lifter motor or lead screws
    • Operation malfunction and interference with other parts by installation

    OK or NG 

    OK :

    • GO TO 2 (With CONSULT-II).
    • GO TO  3 (Without CONSULT-II).

    NG : Repair the malfunctioning part and check again.

  2. CHECK FUNCTION 

    With CONSULT-II 

    Check operation with "SEAT LIFTER FR" in ACTIVE TEST.

    DESCRIPTION CHART

    Test item Description
    SEAT LIFTER FR The front end lifter motor is activated by receiving the drive signal.

    OK or NG 

    OK : Front lifting motor circuit is OK.

    NG : GO TO 3.

    Fig 1: CONSULT-II Function Display - Active Test
    G04077637Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK FRONT LIFTING MOTOR HARNESS CONTINUITY 
    1. Turn ignition switch OFF.
    2. Disconnect driver seat control unit connector and front lifting motor connector.
    3. Check continuity between driver seat control unit connector B153 and terminals 5, 13 and front lifting motor connector B164 terminals 5, 13.

      5 (LG) - 5 (LG) : Continuity should exist. 

      13 (Y) - 13 (Y) : Continuity should exist. 

    4. Check continuity between driver seat control unit connector B153 and terminals 5, 13 and ground.

      5 (LG) - Ground : Continuity should not exist. 

      13 (Y) - Ground : Continuity should not exist. 

      Fig 2: Identifying Continuity Between Driver Seat Control Unit Connector B153 And Terminals 5, 13 And Ground
      G04077638Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK : GO TO 4.

    NG : Repair or replace harness between driver seat control unit and front lifting motor.

  4. CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL 
    1. Connect the driver seat control unit connector.
    2. Front lifting switch operate, check voltage between driver seat control unit connector and ground.
      TERMINAL VOLTAGE CHART

      Connector Terminals (Wire color) Front lifting switch condition Voltage (V) (Approx.)
      (+) (-)
      B153 5 (LG) Ground DOWN Battery voltage
      Other than above 0
      13 (Y) UP Battery voltage
      Other than above 0

    OK or NG 

    OK : Replace front lifting motor.

    NG : Replace driver seat control unit.

    Fig 3: Identifying Voltage Between Driver Seat Control Unit Connector And Ground
    G04077639Courtesy of NISSAN MOTOR CO., U.S.A.
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