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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 1499 (Glass, Window System & Mirrors) >> Power Window System >> Encoder Circuit Check Front LH (Without Rear Power Vent Windows)
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Encoder Circuit Check Front LH (Without Rear Power Vent Windows)

WARNING: This page is about a different car, the 2005 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FRONT POWER WINDOW MOTOR LH POWER SUPPLY 
    1. Turn ignition switch ON.
    2. Check voltage between front power window motor LH connector D9 terminal 4 and ground.
      • 4 (G/R) - Ground: Approx. 10V 

    OK or NG

    • OK: GO TO  3.
    • NG: GO TO 2.
      Fig 1: Checking Voltage Between Front Power Window Motor LH Connector D9 Terminal 4 & Ground
      G02448292Courtesy 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 5.
      Fig 2: Checking Continuity Between Front Power Window Motor LH Connector D9 Terminal 4 And Switch Connector D7 Terminal 5
      G02448293Courtesy of NISSAN MOTOR CO., U.S.A.
      • 4 (G/R) - 5 (G/R): Continuity should exist. 

    OK or NG

    • OK: Replace main power window and door lock/unlock switch. Refer to "FRONT DOOR ".
    • 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.
      Fig 3: Checking Continuity Between Front Power Window Motor LH Connector D9 Terminal 6 & Ground
      G02448294Courtesy of NISSAN MOTOR CO., U.S.A.
      • 6 (W/B) - Ground: Continuity should exist. 

    OK or NG

    • OK: GO TO  5.
    • NG: GO TO 4.
  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 14.
      • 6 (W/B) - 14 (W/B): Continuity should exist. 

    OK or NG

    • OK: Replace main power window and door lock/unlock switch. Refer to "FRONT DOOR ".
    • NG: Repair or replace harness.
      Fig 4: Checking Continuity Between Power Window Motor LH Connector D9 Terminal 6 And Switch Connector D7 Terminal 14
      G02448295Courtesy 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: Oscilloscope Chart
      G02448296Courtesy of NISSAN MOTOR CO., U.S.A.
      Fig 6: Checking Signal Between Main Power Window And Door Lock/Unlock Switch Connector Terminal 13 & Ground
      G02448297Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    • OK: Replace main power window and door lock/unlock switch. Refer to "FRONT DOOR ".
    • NG: GO TO 6.
  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.
      Fig 7: Checking Continuity Between Switch Connector D7 Terminal 13 And Power Window Motor LH Connector D9 Terminal 3
      G02448298Courtesy of NISSAN MOTOR CO., U.S.A.
      • 3 (G/Y) - 13 (G/Y): Continuity should exist. 

    OK or NG

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