Power Windows

A permanent-magnet motor operates each power window. Each motor raises and lowers window when voltage is supplied by appropriate door module. Motor direction depends on polarity of supply voltage. Switches control supply voltage polarity.

The following components are used to control power windows:

• Driver Door Module (DDM).
• Passenger Door Module (PDM).
• Left Rear Door Module (LRDM).
• Right Rear Door Module (RRDM).
• Driver Door Switch Assembly (DDSA).
• Right front power window switch.
• Left rear power window switch.
• Right rear power window switch.
• Left front power window motor.
• Right front power window motor.
• Left rear power window motor.
• Right rear power window motor.
• PWR WDO (30-amp) circuit breaker.

Vehicle is equipped with power windows, controlled by door modules. If Driver Door Module (DDM) receives a window switch request from a window switch integral to Driver Door Switch Assembly (DDSA), DDM check class 2 serial to verify if data status information is correct. If status information is correct, DDM will either supply power and ground to an associated window motor, or send a command through power door serial data line to appropriate door module, controlling window. Appropriate door module controlling window then supplies power and ground to an associated window motor, to move in requested direction.

When a window switch is operated, an associated door module examines request, and verifys if any messages from DDM are prohibiting movement. If conditions are correct, and no prohibitive messages have been received from DDM, associated door module then supplies power and ground to an associated window motor, to move in requested direction.