Component Description

Master Window Control Switch 

The master window control switch receives voltage whenever the interior light relay (located in the BCM) is active. The master window control switch is grounded through the DDM. The master window control switch communicates to the DDM through a private LIN.

Passenger Front Door Window Control Switch 

The passenger door window control switch contains momentary contacts (one for each window switch direction). The PDM provides a return (ground) for the passenger door window control switch. When the control switch is activated, a ground signal is supplied to the PDM to operate the passenger door window regulator motor in the desired direction.

Rear Door Window Control Switch 

Each of the rear door window control switches contains momentary contacts (one for each window switch direction). The driver or passenger side RDM provides a return (ground) for the rear door window control switch. When the rear door window control switch is activated, a ground signal is supplied to the driver or passenger side RDM to operate the rear door window regulator motor in the desired direction.

Door Window Regulator Motor 

The door window regulator motor(s) are bi-directional. Window direction is determined by the polarity of the voltage being supplied to the motor from the associated door module. The door window regulator motor contains 2 Hall-effect sensors. The Hall-effect sensor power supply and return circuits are provided by the associated door module.

Front Display Interface Module (FDIM) 

The FDIM contains a redundant rear window defrost button on the touchscreen display. The FDIM plugs directly into the APIM, and does not communicate directly on any network.

HVAC Module 

The HVAC module contains the rear window defrost switch. If equipped with DATC, the HVAC module requires PMI when it is replaced.

Body Control Module (BCM) 

The BCM module controls the rear window defrost relay. The BCM module requires PMI when it is replaced.

Driver Door Module (DDM) 

The DDM receives power window commands from the master window control switch through a LIN. The DDM supplies voltage and ground to operate the driver door window regulator motor.

The DDM also communicates master window control switch requests to the associated RDM through a LIN and to the PDM through the MS-CAN. The DDM requires PMI when it is replaced.

Passenger Door Module (PDM) 

The PDM receives power window commands from the passenger door window control switch or from the DDM through the MS-CAN. The PDM supplies voltage and ground to operate the passenger door window regulator motor.

The PDM also communicates master window control switch requests to the passenger RDM through a LIN. The PDM requires PMI when it is replaced.

Rear Door Module (RDM) 

The driver side RDM receives power window commands from the rear door window control switch or from the DDM through a LIN. The RDM supplies voltage and ground to operate the rear door window regulator motor.

The passenger side RDM receives power window commands from the rear door window control switch or from the PDM through a LIN. The RDM supplies voltage and ground to operate the rear door window regulator motor. The RDM does not require PMI when it is replaced.