Master Switch Inoperative, Individual Switches Are Operative
- 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.