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Encoder Circuit Check

WARNING: This page is about a different car, the 2009 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK ENCODER OPERATION
    1. Turn ignition switch ON.
    2. Check signal between main power window and door lock/unlock switch connector and ground with oscilloscope.
      TERMINAL REFERENCE VALUE CHART

      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
      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: Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".

    NO: GO TO 2

  2. CHECK FRONT POWER WINDOW MOTOR LH POWER SUPPLY
    1. Disconnect front power window motor LH.
    2. Check voltage between front power window motor LH connector 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 Connector And Ground
      G04902759Courtesy of NISSAN MOTOR CO., U.S.A.

    Is the measurement value within the specification? 

    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.
    3. Check continuity between main power window and door lock/unlock switch connector and front power window motor LH connector.
      CONTINUITY CHART

      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
    4. Check continuity between main power window and door lock/unlock switch connector and ground.
    Fig 4: Checking Continuity Between Main Power Window And Door Lock/Unlock Switch Connector
    G05382342Courtesy of NISSAN MOTOR CO., U.S.A.
    CONTINUITY CHART

    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.

  4. CHECK GROUND CIRCUIT
    1. Turn ignition switch OFF.
    2. Check continuity between front power window motor LH connector and ground.
      CONTINUITY CHART

      Front power window motor LH connector Terminal Ground Continuity
      D9 6 Yes
      Fig 5: Checking Continuity Between Front Power Window Motor Connector And Ground
      G04902751Courtesy 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.
    2. Check continuity between main power window and door lock/unlock switch connector and front power window motor LH connector.
      CONTINUITY CHART

      Main power window and door lock/unlock switch connector Terminal Front power window motor LH connector Terminal Continuity
      D7 2 D9 6 Yes
      Fig 6: Checking Continuity Between Main Power Window And Door Lock/Unlock Switch Connector
      G04902752Courtesy 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.

  6. CHECK HARNESS CONTINUITY 3
    1. Disconnect main power window and door lock/unlock switch.
    2. Check continuity between main power window and door lock/unlock switch connector and front power window motor LH connector.
      CONTINUITY CHART

      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
    3. Check continuity between main power window and door lock/unlock switch connector and ground.
      Fig 7: Checking Continuity Between Main Power Window And Door Lock/Unlock Switch Connector
      G05382345Courtesy of NISSAN MOTOR CO., U.S.A.
      CONTINUITY CHART

      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.

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