Power Windows Operation

The vehicle is equipped with power windows controlled by the door modules. Each passenger door window can be operated, either from a power window switch built into the driver door switch assembly (DDSA), or, from a power window switch mounted locally on its associated door. The driver door window can be operated only from the driver door power window switch built into the Driver Door Switch Assembly (DDSA).

When the Driver Door Module (DDM) receives a window switch request from the DDSA, or a passenger door module (PDM, LRDM, or RRDM), receives a window switch request from, either, the DDSA, or one of the local window switches mounted on one of the passenger doors, the door module examines the request and checks to see if it has received any messages from any of the other vehicle modules prohibiting the movement. If conditions are correct, and no prohibitive messages have been received, the associated door module then supplies power and ground to its associated window motor to move the window as requested.