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Lifting Switch (Front) Circuit Inspection

WARNING: This page is about a different car, the 2006 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FUNCTION 

    With CONSULT-II 

    With "LIFT FR SW-UP, LIFT FR SW-DN" on the DATA MONITOR, operate the lifting switch (front) to check ON/OFF operation.

    CONSULT-II FUNCTION

    Monitor item [OPERATION or UNIT] Contents
    LIFT FR SW-DN "ON/OFF" ON/OFF status judged from the FR lifter switch (DOWN) signal is displayed.
    LIFT RR SW-UP "ON/OFF" ON/OFF status judged from the RR lifter switch (UP) signal is displayed.
    Fig 1: CONSULT-II Display - DATA MONITOR
    G04756547

    Without CONSULT-II 

    1. Turn ignition switch OFF.
    2. Check voltage between driver seat control unit connector and ground.
      VOLTAGE SPECIFICATIONS

      Connector Terminals Condition Voltage (V) (Approx.)
      (+) (-)
      P2 13 Ground Lifting switch (front) ON (DOWN operation) 0
      Other than above Battery voltage
      28 Lifting switch (front) ON (UP operation) 0
      Other than above Battery voltage
      Fig 2: Identifying Voltage Between Driver Seat Control Unit Connector And Ground
      G04756548

    OK or NG 

    OK : Lifting switch (front) circuit is OK.

    NG : GO TO 2.

  2. CHECK LIFTING SWITCH (FRONT) CIRCUIT HARNESS CONTINUITY 
    1. Disconnect driver seat control unit and power seat switch LH.
    2. Check continuity between driver seat control unit connector P2 terminals 13, 28 and power seat switch LH connector P2 terminals 5, 6.

      13 - 5 : Continuity should exist. 

      28 - 6 : Continuity should exist. 

    3. Check continuity between driver seat control unit connector P2 terminals 13, 28 and ground

      13 - Ground : Continuity should not exist. 

      28 - Ground : Continuity should not exist. 

      Fig 3: Identifying Lifting Switch (Front) Circuit Harness Continuity
      G04756549

    OK or NG 

    OK : GO TO 3.

    NG : Repair or replace harness.

  3. CHECK LIFTING SWITCH (FRONT) 

    Check continuity between power seat switch LH terminals as follows.

    CONTINUITY SPECIFICATIONS

    Terminals Condition Continuity
    5 3 Lifting switch (front) ON (DOWN operation) Yes
    Other than above No
    6 Lifting switch (front) ON (UP operation) Yes
    Other than above No
    Fig 4: Identifying Lifting Switch (Front)
    G04756550

    OK or NG 

    OK : Check the condition of the harness and connector.

    NG : Replace power seat switch LH. Refer to "REMOVAL AND INSTALLATION ".

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