Drive Unit

Power Liftgate Drive Unit:

CS Drive Unit Components:

Vehicles equipped with a power liftgate, utilize a power liftgate drive unit. The drive unit assembly consists of a DC motor, optical sensor, clutch, full-open switch, rack, housing/bracket assembly and wire harness. The clutch and motor portion of the assembly provides the power and torque required to open or close the liftgate under the worst case conditions. The optical sensor is used to provide the lift-gate control module with a clutch/motor speed signal. This speed signal is used to monitor any resistance of liftgate travel and allows the liftgate control module to detect obstructions and control the liftgate accordingly. The clutch assembly is used to allow automatic power open/close mode and/or full manual operation, if desired. The full-open switch is used to let the lift-gate control module know when the liftgate is approaching the full open position.

Replaceable components of the power liftgate drive unit assembly are the complete unit, motor alone, optical sensor, full-open switch, link rod, channel/ brackets/clutch/rack and shoes/yoke assembly. Refer to additional information for more component details.

The drive unit and components cannot be adjusted or repaired and if damaged they must be replaced. Consult your Mopart parts catalog for a specific part number.

LIFTGATE IS CLOSED
Depressing either of the power liftgate open/close command switches, sends a PCI data bus signal to the power liftgate control module. The control module will then signal the door mounted latch assembly to release the door from its primary closed and latched position to the ajar and movable position. The lift-gate motor then takes over to move the liftgate into the full open position.

LIFTGATE IS OPEN
Depressing either of the power liftgate open/close command switches, sends a PCI data bus signal to the power liftgate control module. The control module will then signal the liftgate motor to move the lift-gate into the closed position. Once the door mounted latch reaches the body mounted striker assembly, the power latch takes over to cinch the door to the fully closed and latched position.

If a obstacle is encountered during a power open or close cycle, the power liftgate control module will automatically reverse direction of the liftgate to prevent vehicle damage or personal injury. Refer to the owners manual for additional information.