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.
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HOMESERVICE MANUALSBUICK1996ROADMASTER BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEWINDOWSPOWER WINDOW SYSTEMTESTINGMASTER SWITCH INOPERATIVE, INDIVIDUAL SWITCHES ARE OKAY
1996 Buick Roadmaster Base
Master Switch Inoperative, Individual Switches Are Okay
1996 Buick Roadmaster BaseSECTION Master Switch Inoperative, Individual Switches Are Okay
- Turn ignition switch to RUN position. Using a test light, backprobe between ground and Brown wire terminal at master switch connector. If test light is on, go to next step. If test light is off, repair open in Brown wire between master switch and power window 30-amp circuit breaker.
- Backprobe between Tan wire and Light Blue wire terminals at master switch connector. Press right front window switch at master switch to up and down position. If test light is on, problem is intermittent. Check for poor connections. Repair as necessary. If test light is off, check for poor connection at master switch connector. Repair as necessary. If connection is okay, replace master 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.