Preliminary Inspection
- Check power window system circuit breaker. See COMPONENT LOCATIONS . Ensure grounds are clean and tight. See WIRING DIAGRAMS . If only power window master switch operates windows, ensure lock-out is not engaged.
- 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 problem still exists, perform power window system check. See POWER WINDOW SYSTEM CHECK .