FixVault

Check Reclining Sensor 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 

    Check operation with "RECLINING PULSE" on the DATA MONITOR to make sure the pulse changes.

    DATA MONITOR

    Monitor item [OPERATION or UNIT] Contents
    RECLN PULSE - The seat reclining position (pulse) judged from the reclining sensor is displayed
    Fig 1: CONSULT-II Display - Data Monitor
    G04123069Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    1. Turn ignition switch OFF.
    2. Check signal between driver seat control unit connector and ground, with oscilloscope.
    SIGNAL REFERENCE VALUE

    Connector Terminals (Wire color) Condition Signal (Reference value)
    (+) (-)
    B324 9 (G/L) Ground Reclining motor operation
    G04123070Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 2: Identifying Signal Between Driver Seat Control Unit Connector And Ground
    G04123071Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    • OK : Reclining sensor circuit is OK.
    • NG : GO TO 2.
  2. CHECK RECLINING SENSOR HARNESS CONTINUITY 
    1. Disconnect driver seat control unit connector and reclining motor connector.
    2. Check continuity between driver seat control unit connector B324 terminals 9, 31 and reclining motor connector B323 terminals 9, 31.

      9 (G/L) - 9 (G/L) : Continuity should exist. 

      31 (B/W) - 31 (B/W) : Continuity should exist. 

    3. Check continuity between driver seat control unit connector B324 terminals 9, 31 and ground.

      9 (G/L) - Ground : Continuity should not exist. 

      31 (B/W) - Ground : Continuity should not exist. 

    Fig 3: Identifying Continuity Between Driver Seat Control Unit Connector B324 Terminals 9, 31 And Ground
    G04123072Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    • OK : Replace reclining motor.
    • NG : Repair or replace harness between connectors driver seat control unit and reclining motor.