2000 Nissan-Datsun Maxima GLE, RE4F04BFACTORY OEM SERVICE PROCEDURE

Encoder & Limit Switch Check

  1. Inspect suspect window slide mechanism. Ensure slide is free from debris or damage. Check for worn molding. Ensure window is not binding in molding. Repair as needed. If window is able to slide freely, go to next step.
  2. Disconnect suspect window regulator connector. Access power window switch harness connector. Do not disconnect connector. Turn ignition on. Backprobing connector, measure voltage between ground and terminal No. 9. See Fig 1 . If 5 volts is present, go to next step. If 5 volts is not present, replace power window switch.
  3. Connect suspect window regulator connector. Ensure window is fully open. Access power window switch harness connector. Do not disconnect connector. Turn ignition on. Backprobing connector, measure voltage between ground and terminal No. 9. See Fig 1 . Raise window while monitoring voltmeter. Voltage should remain at zero volts until window is within .59" (15 mm) of being closed. Once window opening is less than .59" (15 mm), voltage should be 5 volts. If voltage is as specified, go to step  5 . If voltage is not as specified, go to next step.
  4. Reset suspect window limit switch. Fully close window. Press and hold reset switch on window regulator. See Fig 2 . Fully lower window. Release reset switch. Fully close window. Repeat step  3 at least 10 times. If voltage is as specified, go to next step. If voltage is not as specified, replace window regulator motor.
  5. Using oscilloscope, Turn ignition on. Backprobing suspect window switch connector, measure voltage between ground and terminal No. 9. See Fig 3 . Raise window using automatic function. Square wave pattern should oscillate between zero to 5 volts. If oscilloscope pattern is as specified, replace power window switch. If oscilloscope pattern is not as specified, replace window regulator motor.
Fig 1: Checking Voltage To Power Window Limit Switch
G00016776Courtesy of NISSAN MOTOR CO., U.S.A.
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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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