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Diagnosis Procedure

  1. CHECK ENCODER SIGNAL

    1. Turn ignition switch ON.
    2. Check signal between rear power window switch RH harness connector and ground using oscilloscope.
      (+) (-) Signal
      (Reference value)
      Rear power window switch RH
      Connector Terminal
      D77 12 Ground Refer to following signal
      15
      Fig 1: Checking Signal Between Power Window Main Switch Harness Connector And Ground Using Oscilloscope
      G06934392Courtesy of NISSAN NORTH AMERICA, INC.

    Is the inspection result normal?

    YES 

    Replace rear power window switch RH.

    NO 

    GO TO STEP 2  .

  2. CHECK ENCODER SIGNAL CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect rear power window switch RH connector and rear power window motor RH connector.
    3. Check continuity between rear power window switch RH harness connector and rear power window motor RH harness connector.
      Rear power window switch RH Rear power window motor RH Continuity
      Connector Terminal Connector Terminal
      D77 12 D72 5 Existed
      15 6
    4. Check continuity rear power window switch RH harness connector and ground.
      Rear power window switch RH Ground Continuity
      Connector Terminal
      D77 12 Not existed
      15

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Repair or replace harness.

  3. CHECK ENCODER POWER SUPPLY CIRCUIT 1

    1. Connect rear power window switch RH connector.
    2. Turn ignition switch ON.
    3. Check voltage between rear power window motor RH harness connector and ground.
      (+) (-) Voltage (V)
      (Approx.)
      Rear power window motor RH
      Connector Terminal
      D72 2 Ground 12

    Is the inspection result normal?

    YES 

    GO TO STEP 5  .

    NO 

    GO TO STEP 4  .

  4. CHECK ENCODER POWER SUPPLY CIRCUIT 2

    1. Turn ignition switch OFF.
    2. Disconnect rear power window switch RH connector.
    3. Check continuity between rear power window switch RH harness connector and rear power window motor RH harness connector.
      Rear power window switch RH Rear power window motor RH Continuity
      Connector Terminal Connector Terminal
      D77 4 D72 2 Existed
    4. Check continuity between rear power window switch RH harness connector and ground.
      Rear power window switch RH Ground Continuity
      Connector Terminal
      D77 4 Not existed

    Is the inspection result normal?

    YES 

    Replace rear power window switch RH.

    NO 

    Repair or replace harness.

  5. CHECK GROUND CIRCUIT 1

    1. Turn ignition switch OFF.
    2. Disconnect rear power window switch RH harness connector.
    3. Check continuity between rear power window switch RH harness connector and rear power window motor RH harness connector.
    Rear power window switch RH Rear power window motor RH Continuity
    Connector Terminal Connector Terminal
    D77 3 D72 4 Existed

    Is the inspection result normal?

    YES 

    GO TO STEP 6  .

    NO 

    Repair or replace harness.

  6. CHECK GROUND CIRCUIT 2

    1. Connect rear power window switch RH harness connector.
    2. Check continuity between rear power window switch RH harness connector and ground.
      Rear power window switch RH Ground Continuity
      Connector Terminal
      D77 3 Existed

    Is the inspection result normal?

    YES 

    Replace rear power window motor RH.

    NO 

    Replace rear power window switch RH.

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