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Diagnosis Procedure

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

  1. CHECK ENCODER SIGNAL

    1. Turn ignition switch ON.
    2. Check signal between power window main switch harness connector and ground with oscilloscope.
      Signal name (+) (-) Signal
      (Reference value)
      Power window main switch
      Connector Terminal
      Encoder signal 1 D56 11 Ground Refer to following signal
      Encoder signal 2 12
      G06934392Courtesy of NISSAN NORTH AMERICA, INC.

    Is the inspection result normal?

    YES 

    Replace power window main switch. Refer to REMOVAL AND INSTALLATION .

    NO 

    GO TO STEP 2  .

  2. CHECK ENCODER SIGNAL CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect power window main switch connector and front power window motor LH connector.
    3. Check continuity between power window main switch harness connector and front power window motor LH harness connector.
      Power window main switch Front power window motor LH Continuity
      Connector Terminal Connector Terminal
      D56 11 D9 6 Yes
      12 4
    4. Check continuity between power window main switch harness connector and ground.
      Power window main switch Ground Continuity
      Connector Terminal
      D56 11 No
      12

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Repair or replace harness.

  3. CHECK ENCODER POWER SUPPLY

    1. Connect power window main switch connector.
    2. Turn ignition switch ON.
    3. Check voltage between front power window motor LH harness connector and ground.
      (+) (-) Voltage
      (Approx.)
      Front power window motor LH
      Connector Terminal
      D9 5 Ground Battery voltage

    Is the inspection result normal?

    YES 

    GO TO STEP 5  .

    NO 

    GO TO STEP 4  .

  4. CHECK ENCODER POWER SUPPLY CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect power window main switch connector.
    3. Check continuity between power window main switch harness connector and front power window motor LH harness connector.
      Power window main switch Front power window motor LH Continuity
      Connector Terminal Connector Terminal
      D56 3 D9 5 Yes
    4. Check continuity between power window main switch harness connector and ground.
      Power window main switch Ground Continuity
      Connector Terminal
      D56 3 No

    Is the inspection result normal?

    YES 

    Replace power window main switch. Refer to REMOVAL AND INSTALLATION .

    NO 

    Repair or replace harness.

  5. CHECK GROUND CIRCUIT 1

    1. Turn ignition switch OFF.
    2. Check continuity between front power window motor LH harness connector and ground.
      Front power window motor LH Ground Continuity
      Connector Terminal
      D9 3 Yes

    Is the inspection result normal?

    YES 

    Replace front power window motor LH. Refer to REMOVAL AND INSTALLATION .

    NO 

    GO TO STEP 6  .

  6. CHECK GROUND CIRCUIT 2

    1. Disconnect power window main switch connector.
    2. Check continuity between power window main switch harness connector and front power window motor LH harness connector.
      Power window main switch Front power window motor LH Continuity
      Connector Terminal Connector Terminal
      D56 10 D9 3 Yes
    3. Check continuity between power window main switch harness connector and ground.
      Power window main switch Ground Continuity
      Connector Terminal
      D56 10 No

    Is the inspection result normal?

    YES 

    Replace power window main switch. Refer to REMOVAL AND INSTALLATION .

    NO 

    Repair or replace harness.

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