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Reclining Switch Circuit Check

  1. CHECK FUNCTION 

    With CONSULT-II 

    With "RECLN SW-FR, RECLN SW-RR" on the DATA MONITOR, operate the reclining switch to check ON/OFF operation.

    MONITOR ITEM CONTENTS

    Monitor item [OPERATION or UNIT] Contents
    RECLN SW-FR "ON/OFF" ON/OFF status judged from the reclining switch (FR) signal is displayed.
    RECLIN S W-RR "ON/OFF" ON/OFF status judged from the reclining switch (RR) signal is displayed.
    Fig 1: CONSULT II DATA MONITOR Screen
    G04145989Courtesy 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 Terminals Condition Voltage (V) (Approx.)
    (+) (-)
    B204 12 Ground Reclining switch ON (BACKWARD operation) 0
    Other than above Battery voltage
    27 Reclining switch ON (FORWARD operation) 0
    Other than above Battery voltage
    Fig 2: Identifying Voltage Between Driver Seat Control Unit Connector And Ground
    G04145990Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Reclining switch circuit is OK.

    NG: GO TO 2.

  2. CHECK RECLINING SWITCH 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 12 B213 12 Yes
      27 27
    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 12 No
    27
    Fig 3: Identifying Continuity Between Driver Seat Control Unit Connector And Power Seat Switch Connector
    G04145991Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 3.

    NG: Repair or replace harness.

  3. RECLINING SWITCH INSPECTION 

    Check continuity between power seat switch as follows.

    POWER SEAT SWITCH CONTINUITY

    Power seat switch Terminal Condition Continuity
    B213 12 32 Reclining switch ON (BACKWARD operation) Yes
    Other than above No
    27 Reclining switch ON (FORWARD operation) Yes
    Other than above No
    Fig 4: Identifying Continuity Between Power Seat Switch
    G04145992Courtesy 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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