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Reclining Motor LH Circuit Inspection

WARNING: This page is about a different car, the 2007 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
  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 

    OK: GO TO 2.

    NG: Repair the malfunctioning part and check again.

  2. CHECK FUNCTION 

    With CONSULT-II 

    Check operation with "SEAT RECLINING" in ACTIVE TEST.

    ACTIVE TEST REFERENCE

    Test item Description
    SEAT RECLINING The reclining motor LH is activated by receiving the drive signal.

    Without CONSULT-II 

    GO TO 3.

    OK or NG 

    OK: Reclining motor LH circuit is OK.

    NG: GO TO 3.

    Fig 1: CONSULT II Display - ACTIVE TEST
    G04902978Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK RECLINING MOTOR CIRCUIT HARNESS CONTINUITY 
    1. Turn ignition switch OFF.
    2. Disconnect driver seat control unit and reclining motor LH.
    3. Check continuity between driver seat control unit connector B402 (A) terminals 36, 44 and reclining motor LH connector B404 (B) terminals 3, 4.

      36 - 4 : Continuity should exist. 

      44 - 3 : Continuity should exist. 

    4. Check continuity between driver seat control unit connector B402 (A) terminals 36, 44 and ground.

      36 - Ground : Continuity should not exist. 

      44 - Ground : Continuity should not exist. 

      Fig 2: Checking Continuity Between Driver Seat Control Unit Connector B402 (A) Terminals 36, 44 And Ground, And Between Connector B402 (A) Terminals 36, 44 And Reclining Motor LH Connector B404 (B) Terminals 3, 4
      G04907697Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 4.

    NG: Repair or replace harness.

  4. CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL 
    1. Connect the driver seat control unit and reclining motor LH.
    2. Check voltage between driver seat control unit connector and ground.
      TERMINALS VOLTAGE CHART

      Connector Terminals Condition Voltage (V) (Approx.)
      (+) (-)
      B402 36 Ground Reclining switch ON
      (FORWARD operation)      		 Battery voltage
      Other than above 0
      44 Reclining switch ON
      (BACKWARD operation)      		 Battery voltage
      Other than above 0

    OK or NG 

    OK: Replace reclining motor. Refer to "FRONT SEAT ".

    NG: Replace driver seat control unit. Refer to "FRONT SEAT ".

    Fig 3: Checking Voltage Between Driver Seat Control Unit Connector Terminal 36, 44 And Ground
    G04902980Courtesy of NISSAN MOTOR CO., U.S.A.
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