1. The power window system operates electric motors, mounted on the doors, which lower and raise the windows. The system consists of the control switches, the motors, regulators, glass mechanisms and associated wiring.
2. The power windows can be lowered and raised from the master control switch by the driver or by the switch located at the passenger window. Each window has a separate motor that is reversible. The position of the control switch determines the polarity and therefore the direction of operation.
3. The circuit is protected by fuses and a circuit breaker. Check the fuses in the fuse panel at the left end of the instrument panel. Each motor is equipped with an internal circuit breaker; this prevents one stuck window from disabling the whole system. Refer to the wiring diagrams at the end of this chapter. Problems within this system can only be diagnosed with a factory scan tool. If you have eliminated the obvious causes of a problem, have the vehicle checked at a dealership service department or other properly equipped repair shop.
