1997 Oldsmobile Cutlass BaseFACTORY OEM SERVICE PROCEDURE

Left Front Window Does Not Operate

  1. Turn ignition switch to RUN position. Connect test light between Dark Blue wire and Brown wire (Dark Blue wire and Gray wire on Cutlass and Malibu) at master switch harness connector. While observing test light, press left window switch to UP and DOWN positions. If test light is on, go to next step. If test light is off, replace master switch.
  2. Turn ignition off. Disconnect left front window motor connector. Turn ignition switch to RUN position. Connect test light between ground and Dark Blue wire terminal at left front window motor connector. Press left front window switch to up position. If test light is off, repair open in Dark Blue wire between master switch and left front window motor. If test light is on, repair open in Brown wire (Gray wire on Cutlass and Malibu) between master switch and left front window motor. If wire is okay, replace left front window motor.
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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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