Switch, Power Window: Operation

The driver side front door power switch assembly combines the following switches into a single unit:

• power lock
• power window (for each window including auto-down and express up for both front door windows)
• power mirror selector
• power mirror adjustment in a single unit

The driver side front door power switch module provides resistor multiplexed outputs to the driver door module indicating the power lock switch selection. The power window switch selections are hard wired analog outputs indicating the power mirror selector switch, adjustment switch selections, and electronic message outputs over a Local Interface Network (LIN) data bus connection to the Door Control Module (DCM). The DCM then operates the window lift motor until the requested window operation is complete.

The hard-wired circuits between the driver side front door power switch module and the driver side door module may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the electronic controls and communication between the switch module and the door module or in the diagnosis of the electronic controls and communication between other modules and the door module that provide some features of the power lock, power mirror or power window systems. The most reliable, efficient, and accurate means to diagnose the driver side power switch module or the electronic controls and communication related to power lock, power mirror or power window system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.