Principles of Operation (How Does It Work?)

PRINCIPLES OF OPERATION

The generic electronic module (GEM) controls the opening of the driver window by activating the one-touch down window relay.

The GEM controls manual down and auto down window movement with the down window relay. The relay is activated by applying ground directly to one side of the down window relay coil, and deactivated by removing the ground signal. The delayed accessory relay provides power for the operation of the power windows and the roof opening panel (if equipped). The delayed accessory feature is active when the ignition switch is in the RUN or the ACC position, or when the ignition switch is changed from RUN or ACC to the OFF/LOCK position and the driver and passenger doors are closed.

Down window motion operates in two modes, manual mode and auto mode. When the GEM detects the first down position, first detent on the switch, it enters manual mode. In manual mode, the window will move downward only while the switch is depressed. Similarly, when the GEM detects the second down position, second detent on the switch, it enters auto mode. In auto mode, the window will open completely with just a momentary press of the switch.

The GEM will activate the one-touch down window relay until one of the following conditions is met:
- The driver window control switch is pushed to the UP position.
- The driver window control switch is released (OFF position) and then moved to the down position (first detent) or the one-touch down position (second detent).
- Seven seconds have elapsed since the one-touch down feature was initiated.
- A window regulator motor stall condition is detected on the one-touch down sense line inputs.

The GEM will deactivate the delayed accessory feature when:
- the driver/passenger door is ajar and the ignition switch is in the OFF/LOCK or KEY-OUT position.
- 10 minutes have elapsed since the ignition switch was changed from ACC or RUN to the OFF/LOCK position.

The power sliding window is controlled by the power sliding adjust switch. The power sliding adjust switch controls the power and ground to the power sliding motor to open or close the window.

The rear window defrost is controlled through the EATC module. Once the switch is turned ON, the EATC module grounds the rear window defrost relay coil to activate the rear window defrost relay and provide power to the rear window defrost grid. The EATC will turn the rear window defrost off after approximately 10 minutes.