Preliminary Inspection
- Check PWR WDO (25-amp) circuit breaker in passenger-side instrument panel fuse block. Ensure grounds are clean and tight. See WIRING DIAGRAMS . If only master window switch operates windows, ensure lock-out is not engaged (4-door).
- Check for broken or partially broken wire inside insulation which would cause system failure but prove good in continuity/voltage check. Ensure proper installation of aftermarket electronic equipment that may affect integrity of other systems. If no problem is found, repair by symptom. See SYMPTOM INDEX table under SYMPTOM TESTS.