Power Window Switch: Operation

The power window switches provide an up or down signal to the Body Control Module (BCM). The BCM circuitry controls the output to the driver and passenger door power window motors, and supplies electrical current as required for the stand-alone operation.

Each power window switch has two detent positions in the down direction. The first detent provides normal power window operation. If this switch is depressed to the second detent, the auto down circuitry of the BCM is activated. The auto-down circuitry will automatically move the door window to the fully lowered position, even if the window switch is released. The auto-down function will be automatically cancelled and the window movement will be stopped if the BCM detects a second input from the same switch, in either direction.