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Reclining Motor Circuit Inspection

  1. CHECK SEAT RECLINING MECHANISM 

    Check the following.

    • Operation malfunction caused by an interference with the center pillar or center console
    • Operation malfunction and interference with other parts by poor installation

    OK or NG

    1. OK: GO TO 2.
    2. NG: Repair the malfunctioning part and check again.
  2. CHECK FUNCTION 

    With CONSULT-II 

    Check operation with "SEAT RECLINING" in ACTIVE TEST.

    TEST ITEM DESCRIPTION

    Test item Description
    SEAT
    RECLINING    		 The reclining motor is activated by receiving the drive signal.
    Fig 1: CONSULT-II Display - SEAT RECLINING" In ACTIVE TEST
    G03107580Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    GO TO 3.

    OK or NG

    1. OK: Reclining motor circuit is OK.
    2. NG: GO TO 3.
  3. CHECK RECLINING MOTOR HARNESS CONTINUITY 
    1. Turn ignition switch OFF.
    2. Disconnect driver seat control unit connector and reclining motor connector.
    3. Check continuity between driver seat control unit connector B153 terminals 4 (G/L), 12 (G/Y) and reclining motor connector B166 terminals 4 (G/L), 12 (G/Y).

      4 (G/L) - 4 (G/L): Continuity should exist. 

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

      Fig 2: Checking Reclining Motor Harness Continuity
      G03107581Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Check continuity between driver seat control unit connector B153 terminals 4 (G/L), 12 (G/Y) and ground.

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

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

    OK or NG

    1. OK: GO TO 4.
    2. NG: Repair or replace harness between driver seat control unit and reclining motor.
  4. CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL 
    1. Connect the driver seat control unit and reclining motor connector.
    2. Check voltage between driver seat control unit connector and ground.
      Fig 3: Checking Driver Seat Control Unit Output Signal
      G03107582Courtesy of NISSAN MOTOR CO., U.S.A.
    TERMINAL VOLTAGE

    Connector Terminals (Wire color) Condition Voltage (V) (Approx.)
    (+) (-)
    B153 4 (G/L) Ground Reclining switch ON (Forward operation) Battery voltage
    Reclining switch OFF 0
    12 (G/Y) Reclining switch ON (Backward operation) Battery voltage
    Reclining switch OFF 0

    OK or NG

    1. OK: Replace reclining motor.
    2. NG: Replace driver seat control unit.
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