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Diagnosis Procedure

  1. CHECK ENCODER SIGNAL 
      1. Ignition switch ON.
      2. Check signal between rear power window switch LH harness connector and ground with oscilloscope.
        Signal name (+) (-) Signal(Reference value)
        Rear power window switch LH
        Connector Terminal
        Encoder signal 1 D204 12 Ground Refer to following signal
        Encoder signal 2 15
        GNSDB110382Courtesy 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. 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
        D204 12 D205 4 Yes
        15 6
      4. Check continuity between rear power window switch LH harness connector and ground.
        Rear power window switch LH - Continuity
        Connector Terminal
        D204 12 Ground No
        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. Ignition switch ON.
      3. Check voltage between rear power window motor LH harness connector and ground.
        (+) (-) Voltage(Approx.)
        Rear power window motor LH
        Connector Terminal
        D205 5 Ground Battery voltage

    Is the inspection result normal?

    YES>>

    GO TO 5.

    NO>>

    GO TO 4.

  4. CHECK ENCODER POWER SUPPLY CIRCUIT 
      1. 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
        D204 4 D205 5 Yes
      4. Check continuity between rear power window switch LH harness connector and ground.
        Rear power window switch LH - Continuity
        Connector Terminal
        D204 4 Ground No

    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. Ignition switch OFF.
      2. Check continuity between rear power window motor LH harness connector and ground.
        Rear power window motor LH - Continuity
        Connector Terminal
        D205 3 Ground Yes

    Is the inspection result normal?

    YES>>

    Replace rear power window motor LH. Refer to Removal and Installation .

    NO>>

    GO TO 6.

  6. CHECK GROUND CIRCUIT 2 
      1. Disconnect rear power window switch LH 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
        D204 3 D205 3 Yes
      3. Check continuity between rear power window switch LH harness connector and ground.
        Rear power window switch LH - Continuity
        Connector Terminal
        D204 3 Ground No

    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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