2008 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE

Encoder and Limit Switch Check ( With Automatic Close)

  1. CHECK DOOR WINDOW SLIDE MECHANISM 

    Check the following.

    • Obstacles in window, glass molding, etc.
    • Worn or deformed glass molding.
    • Door sash tilted too far inward or outward.
    • Door window regulator.

    OK or NG 

    OK: GO TO 2.

    NG: Remove obstacles or repair door window slide mechanism.

  2. CHECK LIMIT SWITCH OPERATION 
    1. Turn ignition switch ON.
    2. Check voltage between main power window and door lock/unlock switch connector D5 terminal 9 and ground.
      CONNECTOR TERMINAL VOLTAGE SPECIFICATION

      Terminals Condition Voltage (Approx.)
      (+) (-) Front power window LH is between fully-open and just before fully-closed position (ON) 0
      Connector Terminal
      D5 9 Ground Front power window LH is between just before fully closed position and fully closed position (OFF) 5
       
      Fig 1: Checking Voltage Between Main Power Window And Door Lock/Unlock Switch Connector D5 Terminal 9 And Ground
      G00465306Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GOT TO 3.

    NG: Check harness between main power window and door lock/unlock switch and front power window motor LH.

    • OK: Replace front power window motor LH.
    • NG: Replace or repair harness.
  3. CHECK ENCODER 

    Measure voltage between main power window and door lock/unlock switch connector D5 terminal 13 and ground with oscilloscope when power window is in automatic closing operation.

    CONNECTOR TERMINAL VOLTAGE SPECIFICATION

    Terminals Condition Voltage
    (+) (-) Front power window motor LH operation
    G04814831Courtesy of NISSAN MOTOR CO., U.S.A.
    D5 13 Ground
    Fig 2: Measuring Voltage Between Main Power Window And Door Lock/Unlock Switch Connector D5 Terminal 13 And Ground With Oscilloscope When Power Window Is In Automatic Closing Operation
    G00465307Courtesy of NISSAN MOTOR CO., U.S.A.

    4. OK or NG 

    OK: Replace main power window and door lock/unlock switch.

    NG: Replace front power window motor LH.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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