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Diagnosis Procedure

  1. CHECK ENCODER SIGNAL

    1. Turn ignition switch ON.
    2. Check signal between front power window switch (passenger side) harness connector and ground with oscilloscope.
      Fig 1: Encoder Signal 1 And 2 Voltage Waveforms
      G05982168Courtesy of NISSAN NORTH AMERICA, INC.
      (+) (-) Signal
      (Reference Value)
      Front Power Window Switch (Passenger Side)
      Connector Terminal
      D38 12 Ground Refer to following signal
      15

    Is the inspection result normal?

    YES 

    Replace front power window switch (passenger side). Refer to REMOVAL AND INSTALLATION .

    NO 

    GO TO STEP 2  .

  2. CHECK ENCODER SIGNAL CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect front power window switch (passenger side) connector and front power window motor (passenger side) connector.
    3. Check continuity between front power window switch (passenger side) harness connector and front power window motor (passenger side) harness connector.
      Front Power Window Switch (Passenger Side) Front Power Window Motor (Passenger Side) Continuity
      Connector Terminal Connector Terminal
      D38 12 D40 5 Existed
      15 3
    4. Check continuity between front power window switch (passenger side) harness connector and ground.
      Front power window switch (passenger side) Ground Continuity
      Connector Terminal
      D38 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 front power window switch (passenger side) connector.
    2. Turn ignition switch ON.
    3. Check voltage between front power window motor (passenger side) harness connector and ground.
      (+) (-) Voltage (V)
      (Approx.)
      Front Power Window Motor (Passenger Side)
      Connector Terminal
      D40 4 Ground Battery voltage

    Is the inspection result normal?

    YES 

    GO TO STEP 4  .

    NO 

    GO TO STEP 5  .

  4. CHECK GROUND CIRCUIT 2

    1. Turn ignition switch OFF.
    2. Check continuity between front power window motor (passenger side) harness connector and ground.
      Front power window motor (passenger side) Ground Continuity
      Connector Terminal
      D40 6 Existed

    Is the inspection result normal?

    YES 

    Replace front power window motor (passenger side). Refer to REMOVAL AND INSTALLATION .

    NO 

    GO TO STEP 6  .

  5. CHECK ENCODER POWER SUPPLY CIRCUIT 2

    1. Turn ignition switch OFF.
    2. Disconnect front power window switch (passenger side) connector.
    3. Check continuity between front power window switch (passenger side) harness connector and front power window motor (passenger side) harness connector.
      Front power window switch (passenger side) Front power window motor (passenger side) Continuity
      Connector Terminal Connector Terminal
      D38 4 D40 4 Existed
    4. Check continuity between front power window switch (passenger side) harness connector and ground.
      Front power window switch (passenger side) Ground Continuity
      Connector Terminal
      D38 4 Not existed

    Is the inspection result normal?

    YES 

    Replace front power window switch (passenger side). Refer to REMOVAL AND INSTALLATION .

    NO 

    Repair or replace harness.

  6. CHECK GROUND CIRCUIT 2

    1. Disconnect front power window switch (passenger side) connector.
    2. Check continuity between front power window switch (passenger side) harness connector and front power window motor (passenger side) harness connector.
      Front power window switch (passenger side) Front power window motor (passenger side) Continuity
      Connector Terminal Connector Terminal
      D38 3 D40 6 Existed

    Is the inspection result normal?

    YES 

    Replace front power window switch (passenger side). Refer to REMOVAL AND INSTALLATION .

    NO 

    Repair or replace harness.

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