Theory Of Operation - Window Switches

A single two-way, momentary power window switch with a push-to-open and a lift-to-close tab is provide for each passenger door window while the driver side switch module contains up to four of these power window switches, one switch dedicated to each door window.

The driver side front door power switch bank module provides resistor multiplexed outputs to the Body Control Module (BCM) indicating the power lock switch selection, hardwired analog outputs indicating the power mirror selector switch and adjustment switch selections, and electronic message outputs over a Local Interface Network (LIN) data bus connection indicating the power window switch selections.