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Check Reclining Switch Circuit

WARNING: This page is about a different car, the 2006 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FUNCTION 

    With CONSULT-II 

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

    MONITOR ITEM

    Monitor item [OPERATION or UNIT] Contents
    RECLN SW - FR "ON/ OFF" ON/OFF status judged from the reclining switch (FR) signal is displayed.
    RECLN SW - RR "ON/ OFF" ON/OFF status judged from the reclining switch (RR) signal is displayed.
    Fig 1: CONSULT-II Display - Data Monitor
    G04123097Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    1. Turn ignition switch OFF.
    2. Reclining switch operate, check voltage between driver seat control unit connector and ground.
    VOLTAGE SPECIFICATIONS

    Connector Terminals (Wire color) Reclining switch condition Voltage (V) (Approx.)
    (+) (-)
    B324 27 (L/OR) Ground FORWARD 0
    Other than above Battery voltage
    12 (Y) BACKWARD 0
    Other than above Battery voltage
    Fig 2: Identifying Voltage Between Driver Seat Control Unit Connector And Ground
    G04123098Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    • OK : Reclining switch is OK.
    • NG : GO TO 2.
  2. CHECK HARNESS CONTINUITY 
    1. Disconnect driver seat control unit connector and power seat switch (driver side) connector.
    2. Check continuity between driver seat control unit connector B324 terminals 12, 27 and power seat switch (driver side) connector B326 terminals 12, 27.

      12 (Y) - 12 (Y) : Continuity should exist. 

      27 (L/OR) - 27 (L/OR) : Continuity should exist. 

    3. Check continuity between driver seat control unit connector B324 terminals 12, 27 and ground.

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

      27 (L/OR) - Ground : Continuity should not exist. 

    Fig 3: Identifying Continuity Between Driver Seat Control Unit Connector B324 Terminals 12, 27 And Ground
    G04123099Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    • OK : GO TO 3.
    • NG : Repair or replace harness between driver seat control unit and power seat switch.
  3. CHECK RECLINING SWITCH 

    Check continuity between power seat switch as follows.

    CONTINUITY SPECIFICATIONS

    Terminal Reclining switch condition Continuity
    27 32D FORWARD Yes
    Other than above No
    12 BACKWARD Yes
    Other than above No
    Fig 4: Identifying Continuity Between Power Seat Switch
    G04123100Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    • OK : Check the condition of the harness and connector.
    • NG : Replace power seat switch (driver side).
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