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.
Century, Intrigue & Regal
2000 Buick Regal GSSECTION Century, Intrigue & Regal
- Turn ignition switch to RUN position. Place lock-out switch on master switch assembly in OFF position. Using a test light connected to ground, backprobe master switch assembly connector C2 terminal "A" (Dark Blue wire). If test light illuminates, go to next step. If test light does not illuminate, go to step 3 .
- Repair poor connection or open in Dark Blue wire between master switch assembly connector C2 terminal "A" and splice S307. See Figure . See WIRING DIAGRAMS . Recheck system operation.
- Replace master switch assembly. See WINDOW SWITCH under REMOVAL & INSTALLATION. Recheck system operation.
RENDER: 1.0x
NO RELATED
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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.