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DRIVER SIDE: Diagnosis Procedure

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

Encoder Circuit Check

  1. CHECK ENCODER OPERATION
    1. Turn ignition switch ON.
    2. Check signal between main power window and door lock/unlock switch connector D7 terminals 9, 13 and ground with oscilloscope.
    SIGNAL REFERENCE

    Terminals Signal (Reference value)
    (+) (-)
    Main power window and door lock/unlock switch connector Terminal
    D7 9 Ground Refer to following signal
    13
    Fig 1: Checking Signal Between Main Power Window And Door Lock/Unlock Switch Connector And Ground
    G05046757Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 2: Identifying Signal Waveform
    G04888492Courtesy of NISSAN MOTOR CO., U.S.A.

    Is the inspection result normal? 

    YES: Refer to "INTERMITTENT INCIDENT ".

    NO: GO TO 2

  2. CHECK ENCODER POWER SUPPLY

    Check voltage between front power window motor LH connector D9 terminal 4 and ground.

    VOLTAGE SPECIFICATION

    Terminal Voltage (V) (Approx.)
    (+) (-)
    Front power window motor LH connector Terminal
    D9 4 Ground 10
    Fig 3: Checking Voltage Between Front Power Window Motor LH Connector Terminal 4 And Ground
    G05046759Courtesy of NISSAN MOTOR CO., U.S.A.

    Is the inspection result normal? 

    YES: GO TO  4

    NO: GO TO 3

  3. CHECK HARNESS CONTINUITY 1
    1. Turn ignition switch OFF.
    2. Disconnect main power window and door lock/unlock switch connector D7 and front power window motor LH connector.
    3. Check continuity between main power window and door lock/unlock switch connector D7 (A) terminal 15 and front power window motor LH connector D9 (B) terminal 4.
      CONTINUITY SPECIFICATION

      Main power window and door lock/unlock switch connector Terminal Front power window motor LH connector Terminal Continuity
      D7 (A) 15 D9 (B) 4 Yes
      Fig 4: Checking Continuity Between Main Power Window And Door Lock/Unlock Switch Connector And Front Power Window Motor Connector
      G05046760Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Check continuity between main power window and door lock/unlock switch connector D7 (A) terminal 15 and ground.
    CONTINUITY SPECIFICATION

    Main power window and door lock/unlock switch connector Terminal Ground Continuity
    D7 (A) 15 No

    Is the inspection result normal? 

    YES: Replace main power window and door lock/unlock switch. Refer to "REMOVAL AND INSTALLATION ".

    NO: Repair or replace harness or connectors.

  4. CHECK ENCODER GROUND CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect front power window motor LH connector.
    3. Check continuity between front power window motor LH connector D9 terminal 6 and ground.
    CONTINUITY SPECIFICATION

    Front power window motor LH connector Terminal Ground Continuity
    D9 6 Yes
    Fig 5: Checking Continuity Between Front Power Window Motor LH Connector Terminal 6 And Ground
    G05046761Courtesy of NISSAN MOTOR CO., U.S.A.

    Is the inspection result normal? 

    YES: GO TO  6

    NO: GO TO 5

  5. CHECK HARNESS CONTINUITY 2
    1. Disconnect main power window and door lock/unlock switch connector D7.
    2. Check continuity between main power window and door lock/unlock switch connector D7 (A) terminal 2 and front power window motor LH connector D9 (B) terminal 6.
    CONTINUITY SPECIFICATION

    Main power window and door lock/unlock switch connector Terminal Front power window motor LH connector Terminal Continuity
    D7 (A) 2 D9 (B) 6 Yes
    Fig 6: Checking Continuity Between Main Power Window And Door Lock/Unlock Switch Connector And Front Power Window Motor LH Connector
    G05046762Courtesy of NISSAN MOTOR CO., U.S.A.

    Is the inspection result normal? 

    YES: Replace main power window and door lock/unlock switch. Refer to "REMOVAL AND INSTALLATION ".

    NO: Repair or replace harness or connectors.

  6. CHECK HARNESS CONTINUITY 3
    1. Disconnect main power window and door lock/unlock switch connector D7.
    2. Check continuity between main power window and door lock/unlock switch connector D7 (A) terminals 9, 13 and front power window motor LH connector D9 (B) terminals 3, 5.
      CONTINUITY SPECIFICATION

      Main power window and door lock/unlock switch connector Terminal Front power window motor LH connector Terminal Continuity
      D7 (A) 9 D9 (B) 5 Yes
      13 3
      Fig 7: Checking Continuity Between Main Power Window And Door Lock/Unlock Switch Connector And Ground
      G05046763Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Check continuity between main power window and door lock/unlock switch connector D7 (A) terminals 9, 13 and ground.
    CONTINUITY SPECIFICATION

    Main power window and door lock/unlock switch connector Terminal Ground Continuity
    D7 (A) 9 No
    13

    Is the inspection result normal? 

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

    NO: Repair or replace harness or connectors.



Encoder Circuit Check

  1. CHECK ENCODER OPERATION
    1. Turn ignition switch ON.
    2. Check signal between main power window and door lock/unlock switch connector D7 terminals 9, 13 and ground with oscilloscope.
    SIGNAL REFERENCE

    Terminals Signal (Reference value)
    (+) (-)
    Main power window and door lock/unlock switch connector Terminal
    D7 9 Ground Refer to following signal
    13
    Fig 1: Checking Signal Between Main Power Window And Door Lock/Unlock Switch Connector And Ground
    G05046757Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 2: Identifying Signal Waveform
    G04888492Courtesy of NISSAN MOTOR CO., U.S.A.

    Is the inspection result normal? 

    YES: Refer to "INTERMITTENT INCIDENT ".

    NO: GO TO 2

  2. CHECK ENCODER POWER SUPPLY

    Check voltage between front power window motor LH connector D9 terminal 4 and ground.

    VOLTAGE SPECIFICATION

    Terminal Voltage (V) (Approx.)
    (+) (-)
    Front power window motor LH connector Terminal
    D9 4 Ground 10
    Fig 3: Checking Voltage Between Front Power Window Motor LH Connector Terminal 4 And Ground
    G05046759Courtesy of NISSAN MOTOR CO., U.S.A.

    Is the inspection result normal? 

    YES: GO TO  4

    NO: GO TO 3

  3. 3 CHECK HARNESS CONTINUITY 1
    1. Turn ignition switch OFF.
    2. Disconnect main power window and door lock/unlock switch connector D7 and front power window motor LH connector.
    3. Check continuity between main power window and door lock/unlock switch connector D7 (A) terminal 15 and front power window motor LH connector D9 (B) terminal 4.
      CONTINUITY SPECIFICATION

      Main power window and door lock/unlock switch connector Terminal Front power window motor LH connector Terminal Continuity
      D7 (A) 15 D9 (B) 4 Yes
      Fig 4: Checking Continuity Between Main Power Window And Door Lock/Unlock Switch Connector And Front Power Window Motor Connector
      G05046760Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Check continuity between main power window and door lock/unlock switch connector D7 (A) terminal 15 and ground.
    CONTINUITY SPECIFICATION

    Main power window and door lock/unlock switch connector Terminal Ground Continuity
    D7 (A) 15 No

    Is the inspection result normal? 

    YES: Replace main power window and door lock/unlock switch. Refer to "REMOVAL AND INSTALLATION ".

    NO: Repair or replace harness or connectors.

  4. CHECK ENCODER GROUND CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect front power window motor LH connector.
    3. Check continuity between front power window motor LH connector D9 terminal 6 and ground.
    CONTINUITY SPECIFICATION

    Front power window motor LH connector Terminal Ground Continuity
    D9 6 Yes
    Fig 5: Checking Continuity Between Front Power Window Motor LH Connector Terminal 6 And Ground
    G05046761Courtesy of NISSAN MOTOR CO., U.S.A.

    Is the inspection result normal? 

    YES: GO TO  6

    NO: GO TO 5

  5. CHECK HARNESS CONTINUITY 2
    1. Disconnect main power window and door lock/unlock switch connector D7.
    2. Check continuity between main power window and door lock/unlock switch connector D7 (A) terminal 2 and front power window motor LH connector D9 (B) terminal 6.
    CONTINUITY SPECIFICATION

    Main power window and door lock/unlock switch connector Terminal Front power window motor LH connector Terminal Continuity
    D7 (A) 2 D9 (B) 6 Yes
    Fig 6: Checking Continuity Between Main Power Window And Door Lock/Unlock Switch Connector And Front Power Window Motor LH Connector
    G05046762Courtesy of NISSAN MOTOR CO., U.S.A.

    Is the inspection result normal? 

    YES: Replace main power window and door lock/unlock switch. Refer to "REMOVAL AND INSTALLATION ".

    NO: Repair or replace harness or connectors.

  6. CHECK HARNESS CONTINUITY 3
    1. Disconnect main power window and door lock/unlock switch connector D7.
    2. Check continuity between main power window and door lock/unlock switch connector D7 (A) terminals 9, 13 and front power window motor LH connector D9 (B) terminals 3, 5.
      CONTINUITY SPECIFICATION

      Main power window and door lock/unlock switch connector Terminal Front power window motor LH connector Terminal Continuity
      D7 (A) 9 D9 (B) 5 Yes
      13 3
      Fig 7: Checking Continuity Between Main Power Window And Door Lock/Unlock Switch Connector And Ground
      G05046763Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Check continuity between main power window and door lock/unlock switch connector D7 (A) terminals 9, 13 and ground.
    CONTINUITY SPECIFICATION

    Main power window and door lock/unlock switch connector Terminal Ground Continuity
    D7 (A) 9 No
    13

    Is the inspection result normal? 

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

    NO: Repair or replace harness or connectors.

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