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Lifting Switch (Front) Circuit Check

  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.

    MONITOR ITEM CONTENTS

    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 FR SW-UP "ON/OFF" ON / OFF status judged from the FR lifter switch (UP) signal is displayed.
    Fig 1: CONSULT II DATA MONITOR Screen
    G04145993Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    1. Turn ignition switch OFF.
    2. Check voltage between driver seat control unit connector and ground.
    DRIVER SEAT CONTROL UNIT CONNECTOR AND GROUND VOLTAGE

    Driver seat control unit connector Terminals Condition Voltage (V) (Approx.)
    (+) (-)
    B204 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
    G04145994Courtesy of NISSAN MOTOR CO., U.S.A.

    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 connector.
    2. Check continuity between driver seat control unit connector and power seat switch connector.
      DRIVER SEAT CONTROL UNIT CONNECTOR AND POWER SEAT SWITCH CONNECTOR CONTINUITY

      A B Continuity
      Driver seat control unit connector Terminal Power seat switch connector Terminal
      B204 13 B213 13 Yes
      28 28
    3. Check continuity between driver seat control unit connector and ground.
    DRIVER SEAT CONTROL UNIT CONNECTOR AND GROUND CONTINUITY

    A Ground Continuity
    Driver seat control unit connector Terminal
    B204 13 No
    28
    Fig 3: Identifying Continuity Between Driver Seat Control Unit Connector And Power Seat Switch Connector
    G04145995Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 3.

    NG: Repair or replace harness.

  3. CHECK LIFTING SWITCH (FRONT) 

    Check continuity between power seat switch as follows.

    POWER SEAT SWITCH CONTINUITY

    Power seat switch Terminals Condition Continuity
    B213 13 32 Lifting switch (front) ON (DOWN operation) Yes
    Other than above No
    28 Lifting switch (front) ON (UP operation) Yes
    Other than above No
    Fig 4: Identifying Continuity Between Power Seat Switch
    G04145996Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Replace driver seat control unit.

    NG: Replace power seat switch.

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