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Home >> Infiniti >> 2004 >> QX56 RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1227 (Seat) >> Automatic Drive Positioner >> Lifting Motor (Front) Circuit Inspection

Lifting Motor (Front) Circuit Inspection

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FRONT END SEAT LIFTING MECHANISM 

    Check the following.

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

    OK or NG

    • OK: GO TO 2.
    • NG: Repair or replace the malfunctioning part and check again.
  2. CHECK FUNCTION 

    With CONSULT-II 

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

    SEAT LIFTER FR TEST DESCRIPTION

    Test item Description
    SEAT LIFTER FR The lifting motor (front) is activated by receiving the drive signal.

    Without CONSULT-II 

    GO TO 3.

    OK or NG

    • OK: Lifting motor (front) circuit is OK.
    • NG: GO TO 3.
    Fig 1: CONSULT-II - Identifying "SEAT LIFTER FR" In ACTIVE TEST
    G02384110Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK LIFTING MOTOR (FRONT) CIRCUIT HARNESS CONTINUITY 
    1. Turn ignition switch OFF.
    2. Disconnect driver seat control unit and lifting motor (front).
    3. Check continuity between driver seat control unit connector P3 terminals 37, 45 and lifting motor (front) connector P6 terminals 4, 6.
      • 37 (BR) - 6 (BR): Continuity should exist. 
      • 45 (GR) - 4 (GR): Continuity should exist. 
    4. Check continuity between driver seat control unit connector P3 terminals 37, 45 and ground.
      • 37 (BR) - Ground: Continuity should not exist. 
      • 45 (GR) - Ground: Continuity should not exist. 

    OK or NG

    • OK: GO TO 4.
    • NG: Repair or replace harness.
    Fig 2: Checking Continuity Between Driver Seat Control Unit Connector P3 Terminals 37, 45 And Lifting Motor (Front) Connector P6 Terminals 4 And 6
    G02384111Courtesy of NISSAN MOTOR CO., U.S.A.
  4. CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL 
    1. Connect the driver seat control unit and lifting motor (front).
    2. Check voltage between driver seat control unit connector and ground.
    Fig 3: Driver Seat Control Unit Connector P3 Terminals 37 And 45 Voltage Specifications
    G02384112Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 4: Checking Voltage Between Driver Seat Control Unit Connector And Ground
    G02384113Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    • OK: Replace lifting motor (front).
    • NG: Replace driver seat control unit.
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