Commander 2WD V8-4.7L (2008)
Trunk / Liftgate Switch: Description and Operation
Overhead Console Power Liftgate Switch
Description
DESCRIPTION
NOTE: The overhead console shown contains a combination power liftgate/power sunroof switch. Vehicles equipped with the power liftgate
and no sunroof contain a single power liftgate switch only.
NOTE: On vehicles equipped with both a power sunroof and power liftgate the overhead console switches are serviced together as one
assembly.
The power liftgate switch (1) is mounted in the overhead console assembly (3). The momentary, push button-type power liftgate switch, provides a
hardwired signal to the Power Liftgate Control Module. The switch assembly is attached to the overhead console with two screws.
If the switch is inoperative or damaged the power liftgate/power sunroof switch assembly must be replaced. See: Service and Repair/Overhead Console
Power Liftgate Switch - Removal for the appropriate procedure.
Operation
OPERATION
Battery voltage is supplied to the power liftgate system through a fuse, located in the Integrated Power Module (IPM) assembly. When the power liftgate
switch is pushed, a hardwired signal is sent to the Power Liftgate Control Module. The power liftgate control module then interprets the information to
confirm safety requirements are met before applying power to the power liftgate drive unit to start a power cycle.
During a power liftgate open or close cycle, if the power liftgate control module detects sufficient resistance to liftgate travel, such as an obstruction in
the liftgate's path. The control module will immediately stop liftgate movement and reverse the direction of travel to the full open or closed position.
