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REAR LH : Diagnosis Procedure

WARNING: This page is about a different car, the 2011 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK ENCODER SIGNAL
    1. Turn ignition switch ON.
    2. Check signal between rear power window switch LH harness connector and ground with oscilloscope.
      SIGNALS REFERENCE CHART

      (+) (-) Signal (Reference value)
      Rear power window switch LH
      Connector Terminal
      B42 12 Ground Refer to following signal
      15
      Fig 1: Encoder Signals Chart (Window Up And Down)
      G06934392Courtesy of NISSAN MOTOR CO., U.S.A.

      Is the inspection result normal? 

      YES: Replace rear power window switch LH. Refer to "REMOVAL AND INSTALLATION ".

      NO: GO TO 2.

  2. CHECK ENCODER SIGNAL CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect rear power window switch LH connector and rear power window motor LH connector.
    3. Check continuity between rear power window switch LH harness connector and rear power window motor LH harness connector.
      CONTINUITY REFERENCE CHART

      Rear power window switch LH Rear power window motor LH Continuity
      Connector Terminal Connector Terminal
      B42 12 B41 5 Existed
      15 6
    4. Check continuity rear power window switch LH harness connector and ground.
      CONTINUITY REFERENCE CHART

      Rear power window switch LH Ground Continuity
      Connector Terminal
      B42 12 Not existed
      15

      Is the inspection result normal? 

      YES: GO TO 3.

      NO: Repair or replace harness.

  3. CHECK ENCODER POWER SUPPLY
    1. Connect rear power window switch LH connector.
    2. Turn ignition switch ON.
    3. Check voltage between rear power window motor LH harness connector and ground.
      VOLTAGE REFERENCE CHART

      (+) (-) Voltage (V) (Approx.)
      Rear power window motor LH
      Connector Terminal
      B41 2 Ground 12

      Is the inspection result normal? 

      YES: GO TO  5.

      NO: GO TO 4.

  4. CHECK ENCODER POWER SUPPLY CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect rear power window switch LH connector.
    3. Check continuity between rear power window switch LH harness connector and rear power window motor LH harness connector.
      CONTINUITY REFERENCE CHART

      Rear power window switch LH Rear power window motor LH Continuity
      Connector Terminal Connector Terminal
      B42 4 B41 2 Existed
    4. Check continuity between rear power window switch LH harness connector and ground.
      CONTINUITY REFERENCE CHART

      Rear power window switch LH Ground Continuity
      Connector Terminal
      B42 4 Not existed

      Is the inspection result normal? 

      YES: Replace rear power window switch LH. Refer to "REMOVAL AND INSTALLATION ".

      NO: Repair or replace harness.

  5. CHECK GROUND CIRCUIT 1
    1. Turn ignition switch OFF.
    2. Disconnect rear power window switch LH connector.
    3. Check continuity between rear power window switch LH harness connector and rear power window motor LH harness connector.
      CONTINUITY REFERENCE CHART

      Rear power window switch LH Rear power window motor LH Continuity
      Connector Terminal Connector Terminal
      B42 3 B41 4 Existed
    4. Check continuity between rear power window switch LH harness connector and ground.
      CONTINUITY REFERENCE CHART

      Rear power window switch LH Ground Continuity
      Connector Terminal
      B42 3 Not existed

      Is the inspection result normal? 

      YES: GO TO 6.

      NO: Repair or replace harness.

  6. CHECK GROUND CIRCUIT 2
    1. Connect rear power window switch LH connector.
    2. Check continuity between rear power window switch LH harness connector and ground.
      CONTINUITY REFERENCE CHART

      Rear power window switch LH Ground Continuity
      Connector Terminal
      B42 3 Existed

      Is the inspection result normal? 

      YES: Replace rear power window motor LH. Refer to , "REMOVAL AND INSTALLATION ".

      NO: Replace rear power window switch LH. Refer to "REMOVAL AND INSTALLATION ".

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