System Operation

Glass, Frames and Mechanisms - with Door Modules (with Window One-touch Up)

System Operation

System Diagram - Power Windows

LH (Left Hand) Side





RH (Right Hand) Side





Network Message Chart - Power Windows

PDM (Passenger Door Module) Network Input Messages






System Diagram - Rear Window Defrost





Network Message Chart - Rear Window Defrost

IPC (Instrument Panel Cluster) Network Input Messages





HVAC (Heating, Ventilation, and Air Conditioning) Module Network Input Messages





BCM (Body Control Module) Network Input Messages






Power Window Operation - Front

NOTE: If the vehicle battery is disconnected, the one-touch up and one-touch down feature (and obstacle detection) is disabled prior to initialization. REFER to Window Motor Initialization Testing and Inspection.

The power windows operate when the ignition relay is active. Both front windows are equipped with obstacle detection and one-touch up and one-touch down functionality. If an obstacle has been detected in the window opening as the window glass is moving upward, the window motor automatically reverses direction and moves the glass downward.

LH (Left Hand) Window Operation

The master window control switch communicates to the DDM (Driver Door Module) through a private LIN (Local Interconnect Network). When commanded by the master window control switch, the DDM (Driver Door Module) supplies power and ground to operate the LH (Left Hand) front window in the desired direction. The DDM (Driver Door Module) monitors the window glass position through feedback from 2 Hall-effect sensors (integral to the power window motor). If there is a issue with the Hall-effect sensor circuit(s), the DDM (Driver Door Module) only moves the window in 500 ms intervals (the window control switch must be released and activated again to move the window).

RH (Right Hand) Window Operation

The master window control switch communicates to the DDM (Driver Door Module) through a private LIN (Local Interconnect Network). The DDM (Driver Door Module) communicates to the PDM (Passenger Door Module) through the MS-CAN (Medium Speed Controller Area Network).

When commanded by the master window control switch or the RH (Right Hand) window control switch, the PDM (Passenger Door Module) supplies power and ground to operate the RH (Right Hand) front window in the desired direction. The PDM (Passenger Door Module) monitors window glass position through feedback from 2 Hall-effect sensors (integral to the power window motor). If there is a issue with the Hall-effect sensor circuit(s), the PDM (Passenger Door Module) only moves the window in 500 ms intervals (the window control switch must be released and activated again to move the window).

Power Window Operation - Rear

NOTE: If the vehicle battery is disconnected, the one-touch up and one-touch down feature (and obstacle detection) is disabled prior to initialization. REFER to Window Motor Initialization Testing and Inspection.

The rear power windows operate when the ignition relay is active. Both rear windows are equipped with obstacle detection and one-touch up and one-touch down functionality. If an obstacle has been detected in the window opening as the window glass is moving upward, the window motor automatically reverses direction and moves the glass downward.

LH (Left Hand) Window Operation

The master window control switch communicates to the DDM (Driver Door Module) through a private LIN (Local Interconnect Network). The DDM (Driver Door Module) communicates to the DRDM (Driver Rear Door Module) through a private LIN (Local Interconnect Network).

When commanded by the master window control switch or the LH (Left Hand) rear window control switch, the DRDM (Driver Rear Door Module) supplies power and ground to operate the LH (Left Hand) rear window in the desired direction. The DRDM (Driver Rear Door Module) monitors window glass position through feedback from 2 Hall-effect sensors (integral to the power window motor). If there is a issue with the Hall-effect sensor circuit(s), the DRDM (Driver Rear Door Module) only moves the window in 500 ms intervals (the window control switch must be released and activated again to move the window).

RH (Right Hand) Window Operation

The master window control switch communicates to the DDM (Driver Door Module) through a private LIN (Local Interconnect Network). The DDM (Driver Door Module) communicates to the PDM (Passenger Door Module) through the MS-CAN (Medium Speed Controller Area Network). The PDM (Passenger Door Module) communicates to the PRDM (Passenger Rear Door Module) through a private LIN (Local Interconnect Network).

When commanded by the master window control switch or the RH (Right Hand) rear window control switch, the PRDM (Passenger Rear Door Module) supplies power and ground to operate the RH (Right Hand) rear window in the desired direction. The PRDM (Passenger Rear Door Module) monitors window glass position through feedback from 2 Hall-effect sensors (integral to the power window motor). If there is a issue with the Hall-effect sensor circuit(s), the PRDM (Passenger Rear Door Module) only moves the window in 500 ms intervals (the window control switch must be released and activated again to move the window).

Rear Window Defrost

When the rear window defrost switch is activated, the BCM (Body Control Module) activates the rear window defrost relay (located in the BJB (Battery Junction Box)). When the rear window defrost is actived from the switch, the rear window defrost grid is energized and the BCM (Body Control Module) supplies voltage to illuminate the rear window defrost switch status LED (Light-emitting Diode). The rear window defrost system may also be automatically activated as an extra load for accelerated engine warm-up, however the defrost switch status LED (Light-emitting Diode) will remain off unless the defrost switch is activated.

If equipped with Sony(R) Sound, the rear window defrost system can also be commanded on and off using voice commands or by touching the rear window defrost button located on the touchscreen interface (FDIM (Front Display Interface Module)). For additional information on voice or touchscreen commanded features, refer to the Owner's Literature.

The BCM (Body Control Module) deactivates the rear window defrost relay when one of these conditions is met:
- The rear window defrost switch is pressed when the feature is active.
- Ignition state is changed from ON to OFF.
- A predetermined timer completes.
- Battery voltage has dropped below a specified threshold (load management strategy).

Passenger Windows Lock-Out

When the lock-out switch (part of the master window control switch) is in the LOCK position, the rear passenger power windows only operate from the master window control switch.