1998 Oldsmobile RegencyFACTORY OEM SERVICE PROCEDURE

Power Window System: Description

Power window system uses a permanent magnet motor to operate each window. Motor operation is controlled by a master switch assembly alone or in combination with individual window switches. Window is raised or lowered depending on polarity of current applied to window motor.

Models use a control module to access an express mode of operation. When left front window switch pushed to first detent or is held in down position for .3 second, module activates relay to apply full battery voltage to window motor. This provides current to quickly and fully open window.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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When to See a Mechanic

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

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

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