Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1998 Oldsmobile Aurora V8-4.0L VIN CFACTORY OEM SERVICE PROCEDURE
LH Front Window Switch Operation
With the ignition switch in the RUN position, battery voltage is applied to the LH front power window switch from the PWR WDO/SUN RF CIRCUIT BREAKER.
Battery voltage is applied to the window motor when any UP switch in the LH front power window switch not associated with express down is operated. The window motor is grounded through the DOWN contact in the LH front power window switch. The motor runs to drive the window up. Battery voltage is applied to the window motor in the opposite direction when any DOWN switch in the LH front power window switch is operated. The window motor is grounded through the UP contact in the LH front power window switch. The motor runs to drive the window down.
Battery voltage is applied to the window motor when any UP switch in the LH front power window switch not associated with express down is operated. The window motor is grounded through the DOWN contact in the LH front power window switch. The motor runs to drive the window up. Battery voltage is applied to the window motor in the opposite direction when any DOWN switch in the LH front power window switch is operated. The window motor is grounded through the UP contact in the LH front power window switch. The motor runs to drive the window down.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.