System Operation
System Diagram - Power Windows
Driver Side Power Windows
*.sttxt { visibility: hidden; } *.stcallout { visibility: visible; } E340177 1 Driver Side Front Window Motor 2 Driver Side Rear Window Control Switch 3 Driver Window Control Switch 4 DDM 5 Driver Side Rear Window MotorItem | Description |
---|---|
1 | Driver Side Front Window Motor |
2 | Driver Side Rear Window Control Switch |
3 | Driver Window Control Switch |
4 | DDM |
5 | Driver Side Rear Window Motor |
Passenger Side Power Windows
*.sttxt { visibility: hidden; } *.stcallout { visibility: visible; } E340178 MS-CAN 1 Passenger Side Front Window Motor 2 Passenger Side Rear Window Control Switch 3 Passenger Side Front Window Control Switch 4 PDM 5 Passenger Side Rear Window Motor 6 DDMItem | Description |
---|---|
1 | Passenger Side Front Window Motor |
2 | Passenger Side Rear Window Control Switch |
3 | Passenger Side Front Window Control Switch |
4 | PDM |
5 | Passenger Side Rear Window Motor |
6 | DDM |
Network Message Chart - Power Windows
Passenger Door Module (PDM) Network Input Messages
Broadcast Message | Originating Module | Message Purpose |
---|---|---|
Passenger window command | DDM | When activating the passenger front or rear windows from the driver window control switch, the passenger window command is sent from the DDM to the PDM . |
Rear window disable command | DDM | When the lock out switch (located in the driver window control switch) is in the LOCK position, the DDM sends this command to the PDM to disable rear passenger window operation from the rear passenger window control switches. |
System Diagram - Rear Window Defrost
*.sttxt { visibility: hidden; } *.stcallout { visibility: visible; } E371185 1 FCIM MS-CAN 2 Rear Window Defrost Grid 3 GWM 4 BCMC HS1-CANItem | Description |
---|---|
1 | FCIM |
2 | Rear Window Defrost Grid |
3 | GWM |
4 | BCMC |
Network Message Chart - Rear Window Defrost
Front Controls Interface Module (FCIM) Network Input Messages
Broadcast Message | Originating Module | Message Purpose |
---|---|---|
Rear window defrost request | HVAC Module | When the BCMC receives the rear window defrost request message, the BCMC activates the rear window defrost system. |
Power Window Operation
Voltage is supplied to the power window system whenever the ignition is on, or whenever the ignition is cycled from on to off while the LH and RH front doors are closed. The voltage supplied to the power window system is removed when:
Front Power Window Operation
NOTE: If the battery is disconnected while the window is moving, the one-touch up feature (and obstacle detection) is disabled prior to initialization.
Refer to: Power Door Window Initialization (501-11 Glass, Frames and Mechanisms, General Procedures).
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 regulator motor automatically reverses direction and moves the window glass downward.
Driver Side Front Window Operation
The driver window control switch communicates to the DDM through a private LIN . When commanded by the driver window control switch, the DDM supplies power and ground to operate the driver front window in the desired direction. The DDM monitors fluctuations of the motor current (ripple count for DC motors) to determine the window glass position.
Passenger Side Front Window Operation
The driver window control switch communicates to the DDM through a private LIN . The DDM communicates to the PDM through the MS-CAN . When commanded by the driver window control switch or the passenger front window control switch, the PDM supplies power and ground to operate the passenger side front window in the desired direction. The PDM monitors fluctuations of the motor current (ripple count for DC motors) to determine the window glass position.
Rear Power Window Operation
NOTE: If the battery is disconnected while the window is moving, the one-touch up feature (and obstacle detection) is disabled prior to initialization.
Refer to: Power Door Window Initialization (501-11 Glass, Frames and Mechanisms, General Procedures).
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.
Driver Side Rear Window Operation
The driver window control switch communicates to the DDM through a private LIN . The rear door window control switch is wired directly to the DDM . When commanded by the driver window control switch or the rear window control switch, the DDM supplies power and ground to operate the driver side rear window in the desired direction. The DDM monitors fluctuations of the motor current (ripple count for DC motors) to determine the window glass position.
Passenger Side Rear Window Operation
The driver window control switch communicates to the DDM through a private LIN . The DDM communicates to the PDM through the MS-CAN . The rear door window control switch is wired directly to the PDM . When commanded by the driver window control switch or the rear window control switch, the PDM supplies power and ground to operate the passenger side rear window in the desired direction. The PDM monitors fluctuations of the motor current (ripple count for DC motors) to determine the window glass position.
Rear Passenger Windows Lock Out
When the lock out switch (part of the driver window control switch) is in the LOCK position, the rear passenger power windows only operate from the driver window control switch.
Global Open/Close
NOTE: The global open/close feature may be enabled/disabled by the customer following a procedure listed in the Owner's Literature. For a complete list of available programmable parameters, refer to Module Configuration in Section 418-01.
The RKE transmitter can be used to operate the windows when the ignition is off and the accessory delay feature is not active. Within a short time after unlocking the vehicle doors with the RKE transmitter, press and hold the unlock button on the RKE transmitter until the windows begin moving. The windows automatically open. Pressing the unlock button a second time while the windows are moving stops the window movement. To close the windows, press and hold the lock button on the RKE transmitter. The windows automatically close. Pressing the unlock button a second time while the windows are moving stops window movement.
Rear Window Defrost
When the rear window defrost switch (integral to the FCIM ) is activated, the the FCIM module sends the request message to the BCMC . The BCMC supplies voltage to the rear window defrost grid(s). In some cases, the rear window defrost system may automatically activate as an extra load for accelerated engine warm-up. However the rear window defrost status LED remains off unless the rear window defrost switch is activated.
If equipped, the rear window defrost can also be commanded on and off using the rear window defrost button located on the touchscreen interface. For additional information on touchscreen commanded features, refer to the Owner's Literature.
The BCMC deactivates the rear window defrost relay when one of these conditions is met:
Component Description
Driver Window Control Switch
The driver window control switch receives voltage whenever the delayed accessory feature is active. The driver window control switch communicates to the DDM through a private LIN .
Front Passenger Door Window Control Switch
The front passenger window control switch contains momentary contacts (one for each window switch direction). The PDM provides a return (ground) for the front passenger window control switch. When the control switch is activated, a ground signal is supplied to the PDM to operate the window 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 DDM or PDM provides a return (ground) for the rear window control switch. When the control switch is activated, a ground signal is supplied to the DDM or PDM to operate the window motor in the desired direction.
Window Regulator Motor
The 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.
Driver Door Module (DDM)
The DDM receives power window commands from the driver window control switch and the driver side rear door window control switch. The DDM supplies voltage and ground to operate the driver side front and rear power window regulator motors.
The DDM also communicates driver window control switch requests to the PDM through the MS-CAN . PMI is required whenever installing a new module.
Passenger Door Module (PDM)
The PDM receives power window commands from the passenger front door window control switch or from the DDM through the MS-CAN . The PDM supplies voltage and ground to operate the passenger front and rear power window regulator motors. PMI is required whenever installing a new module.
FCIM
The FCIM contains the rear window defrost button. The FCIM requires PMI when it is replaced.
BCMC
When a rear window defrost requiest message is sent to the BCMC , the BCMC activates the rear window defrost system. PMI is required whenever installing a new module.
Removal
NOTE: Removal steps in this procedure may contain installation details.
With the vehicle in NEUTRAL, position it on a hoist.NOTE: Use the hex-holding feature to prevent the stud from turning while removing the nut.
Remove and discard the 2 rear stabilizer bar link nuts and remove the rear stabilizer bar link.