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Encoder Circuit Check Front LH

  1. CHECK FRONT POWER WINDOW MOTOR LH POWER SUPPLY 
    1. Turn ignition switch OFF.
    2. Disconnect front power window motor LH.
    3. Turn ignition switch ON.
    4. Check voltage between front power window motor LH connector D9 terminal 4 and ground.
      1. 4 (BR) - Ground: Approx. 10V 

    OK or NG

    1. OK: GO TO 3.
    2. NG: GO TO 2.
    Fig 1: Checking Voltage Between Front Power Window Motor LH Connector D9 Terminal 4 And Ground
    G02383842Courtesy of NISSAN MOTOR CO., U.S.A.
  2. CHECK HARNESS CONTINUITY 
    1. Turn ignition switch OFF.
    2. Disconnect front power window motor LH and main power window and door lock/unlock switch.
    3. Check continuity between front power window motor LH connector D9 terminal 4 and main power window and door lock/unlock switch connector D7 terminal 15.
      1. 4 (BR) - 15 (BR): Continuity should exist. 
      Fig 2: Checking Continuity Between Front Power Window Motor LH Connector D9 Terminal 4 And Main Power Window And Door Lock/Unlock Switch Connector D7 Terminal 15
      G02383843Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: Replace main power window and door lock/unlock switch.
    2. NG: Repair or replace harness.
  3. CHECK ENCODER GROUND 
    1. Turn ignition switch OFF.
    2. Disconnect front power window motor LH.
    3. Check continuity between front power window motor LH connector D9 terminal 6 and ground.
      1. 6 (W/B) - Ground: Continuity should exist. 

    OK or NG

    1. OK: GO TO 5.
    2. NG: GO TO 4.
    Fig 3: Checking Continuity Between Front Power Window Motor LH Connector D9 Terminal 6 And Ground
    G02383844Courtesy of NISSAN MOTOR CO., U.S.A.
  4. CHECK ENCODER GROUND CIRCUIT 
    1. Disconnect main power window and door lock/unlock switch.
    2. Check continuity between front power window motor LH connector D9 terminal 6 and main power window and door lock/unlock switch connector D7 terminal 2.
      1. 6 (W/B) - 2 (W/B): Continuity should exist. 

    OK or NG

    1. OK: Replace main power window and door lock/unlock switch.
    2. NG: Repair or replace harness.
    Fig 4: Checking Continuity Between Front Power Window Motor LH Connector D9 Terminal 6 And Main Power Window And Door Lock/Unlock Switch Connector D7 Terminal 2
    G02383845Courtesy of NISSAN MOTOR CO., U.S.A.
  5. CHECK ENCODER SIGNAL 
    1. Connect front power window motor LH.
    2. Turn ignition switch ON.
    3. Check the signal between main power window and door lock/unlock switch connector and ground with oscilloscope.
      Fig 5: Connector D7 Terminal 13 Encoder Signal Specification
      G02383846Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: Replace main power window and door lock/unlock switch.
    2. NG: GO TO 6.
    Fig 6: Checking Signal Between Main Power Window And Door Lock/Unlock Switch Connector And Ground With Oscilloscope
    G02383847Courtesy of NISSAN MOTOR CO., U.S.A.
  6. CHECK ENCODER CIRCUIT 
    1. Turn ignition switch OFF.
    2. Disconnect front power window motor LH and main power window and door lock/unlock switch.
    3. Check continuity between front power window motor LH connector D9 terminal 3 and main power window and door lock/unlock switch connector D7 terminal 13.
      1. 3 (G/Y) - 13 (G/Y): Continuity should exist. 

    OK or NG

    1. OK: Replace front power window motor LH.
    2. NG: Repair or replace harness.
    Fig 7: Checking Continuity Between Front Power Window Motor LH Connector D9 Terminal 3 And Main Power Window And Door Lock/Unlock Switch Connector D7 Terminal 13
    G02383848Courtesy of NISSAN MOTOR CO., U.S.A.
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