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REAR LH: Diagnosis Procedure

  1. CHECK ENCODER SIGNAL 
    1. Turn ignition switch ON.
    2. Check signal between rear power window switch LH harness connector and ground with oscilloscope.
      (+) (-) Signal (Reference value)
      Rear power window switch LH
      Connector Terminal
      D54 12 Ground Refer to following signal
      15
      Fig 1: Rear Power Window Main Switch (LH) Encoder Signal 1 And 2 Signal Waveform
      G06934392Courtesy of NISSAN NORTH AMERICA, INC.

      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.
      Rear power window switch LH Rear power window motor LH Continuity
      Connector Terminal Connector Terminal
      D54 12 D52 5 Existed
      15 6
    4. Check continuity rear power window switch LH harness connector and ground.
      Rear power window switch LH Ground Continuity
      Connector Terminal
      D54 12 Not existed
      15

      Is the inspection result normal? 

      YES: GO TO 3.

      NO: Repair or replace harness.

  3. CHECK ENCODER POWER SUPPLY CIRCUIT 1 
    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 (V) (Approx.)
      Rear power window motor LH
      Connector Terminal
      D52 2 Ground 12

      Is the inspection result normal? 

      YES: GO TO 4.

      NO: GO TO  5.

  4. CHECK GROUND CIRCUIT 1 
    1. Turn ignition switch OFF.
    2. Check continuity between rear power window motor LH harness connector and ground.
      Rear power window motor LH Ground Continuity
      Connector Terminal
      D52 4 Existed

      Is the inspection result normal? 

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

      NO: GO TO  6.

  5. CHECK ENCODER POWER SUPPLY CIRCUIT 2 
    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.
      Rear power window switch LH Rear power window motor LH Continuity
      Connector Terminal Connector Terminal
      D54 4 D52 2 Existed
    4. Check continuity between rear power window switch LH harness connector and ground.
      Rear power window switch LH Ground Continuity
      Connector Terminal
      D54 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.

  6. CHECK GROUND CIRCUIT 2 
    1. Disconnect rear power window switch LH harness connector.
    2. Check continuity between rear power window switch LH harness connector and rear power window motor LH harness connector.
      Rear power window switch LH Rear power window motor LH Continuity
      Connector Terminal Connector Terminal
      D54 3 D52 4 Existed
    3. Check continuity between rear power window switch LH harness connector and ground.
      Rear power window switch LH Ground Continuity
      Connector Terminal
      D54 3 Not existed

      Is the inspection result normal? 

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

      NO: Repair or replace harness.

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