All Windows Inoperative
- Turn ignition switch to RUN position. Using a test light, backprobe between ground and Brown wire terminal at master window switch connector. If test light illuminates, go to next step. If test light does not illuminate, repair open in Brown wire between power window 30-amp circuit breaker and master window switch.
- Backprobe between Brown wire and Black wire terminals (ground) of master window switch harness connector. If test light illuminates, check for poor connection at master window switch connector. If connection is okay, replace master window switch. If test light does not illuminate, check for poor connection at ground point. If connection is okay, repair open in Black wire between master window switch and ground connection.