Grand Caravan V6-3.3L VIN R (2005)
Power Trunk / Liftgate Control Module: Description and Operation
Power Liftgate Control Module
Vehicles equipped with a power liftgate (PLG) utilize a PLG control module. This module is located on the vehicles left side D-pillar just below the
motor assembly and contains a microprocessor, which is used to communicate to the vehicles body control module. The PLG control module receives
and monitors logic inputs from all the PLG system switches except for the outside handle switch. This module also contains the software technology to
detect liftgate obstructions and stop and/or reverse the door accordingly.
The power liftgate control module contains the electronic circuitry and software used to control the sequence of events for the power liftgate system. This
module communicates on the Programmable Communications Interface (PCI) bus circuit with the vehicles Body Control Module (BCM) to monitor
many different inputs and outputs such as door lock status, transmission gear selector position and vehicle speed.
