General

The power door locks circuits use a door module in each door to control the power and ground to operate each doors lock. This has greatly reduced the physical amount of electrical wiring and harnesses needed to carry out the door lock functions. In order to control the door locks, the modules communicate with each other, and with other modules used throughout the vehicle via the Serial Data Class 2 communication line. Each door module controls the power and ground to each respective door lock actuator The Rear Integration (RIM) Module is the lock master of the system.

The power door lock subsystem comprises the following components:
^ Class 2 serial data link
^ Door lock actuators (motors/manual levers)
^ Power door lock switches
^ Driver Door Switch Assembly (DDSA)
^ Driver Door Module (DDM)
^ Passenger Front Door Module (PFDM)
^ Left Middle Door Module (LMDM) (W/V4U)
^ Right Middle Door Module (RMDM) (W/V4U)
^ Right Rear Door Module (RRDM)
^ Left Rear Door Module (LRDM)
^ Rear Integration (RIM) Module

For a description of the RPO Code(s) shown in this image/article refer to the RPO Code List found at Vehicle/Application ID RPO Codes