1996 GMC Jimmy 4D Utility, AWDFACTORY OEM SERVICE PROCEDURE

Windows Operate Okay

  1. Turn ignition switch to RUN position. Connect test light between inoperative window motor connector terminals "A" (Brown wire) and "B" (Dark Blue wire). Operate window switch between UP and DOWN positions. If test light does not illuminate in both positions, go to next step. If test light illuminates in both positions, check inoperative window motor for poor connection. If connection is okay, replace window motor.
  2. Connect test light between inoperative window switch connector left rear and right rear terminals "A" (Dark Green wire) and "D" (Purple wire), or between window switch connector right front terminals "J" (Light Blue wire) and "L" (Tan wire). Operate inoperative window switch (at left front switch) between UP and DOWN positions. If test light illuminates in both positions, go to next step. If test light does not illuminate in both positions, go to step 4).
  3. Connect test light between right front inoperative window switch connector terminals "G" (Dark Blue wire) and "K" (Brown wire), or between left rear and right rear terminals "F" (Brown wire) and "C" (Dark Blue wire). Operate inoperative window switch between UP and DOWN positions. If test light illuminates in both positions, repair open in Dark Blue or Brown wires. If test light does not illuminate in both positions, check inoperative window switch for poor connection. If connection is okay, replace inoperative window switch.
  4. Connect test light between left front window switch connectors. For right front, connect test light between terminals "B" (Light Blue wire) and "D" (Tan wire). For left rear, connect test light between terminals "G" (Dark Green wire) and "K" (Purple wire). For right rear, connect test light between terminals "H" (Light Green wire) and "H" (Purple wire). If test light illuminates in all positions, repair poor connection or open in appropriate wiring. If test light does not illuminate in all positions, replace left front window switch.
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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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