Description And Operation: Operation

Power Liftgate Operation:

• Battery voltage is supplied to the power liftgate system through a fuse located in the Power Distribution Center (PDC).
• The power liftgate open/close command can be initiated by either one press of the power liftgate overhead console switch, one press of the power liftgate D-Pillar switch (switch is for close only) or two presses of the key fob power liftgate button.
• The D-Pillar switches are hardwired to the Power Liftgate Control Module (PLGM), where as the key fob signal and overhead console switch is sent out on the Controller Area Network (CAN) data bus circuit.
• This signal is detected by the PLGM. The PLGM then interprets the information to confirm safety requirements are met before applying power to the power liftgate motor to start a power cycle.

During a power liftgate open or close cycle, if the PLGM detects sufficient resistance to liftgate travel, such as an obstruction in the liftgate's path, the PLGM will immediately stop liftgate movement and reverse the direction of travel to the full open or closed position.

The PLGM has the ability to relearn. After 8 miles have been recorded on the odometer, anytime the liftgate is fully opened and fully closed using the automatic system, the PLGM will learn from its cycle. If a replacement power liftgate component is installed or a liftgate adjustment is made, the PLGM will relearn the effort and time required to open or close the liftgate. This calibration can be performed with a diagnostic scan tool or with a complete cycle of the liftgate using any of the command switches. for detailed instructions. Refer to STANDARD PROCEDURE .