Description & Operation: Notes
WARNING:
Vehicles are equipped with air bag supplemental restraint system. Before attempting ANY repairs involving steering column, instrument panel or related components, see SERVICE PRECAUTIONS and DISABLING & ACTIVATING AIR BAG SYSTEM in appropriate AIR BAG RESTRAINT SYSTEMS article.
NOTE:
On some vehicles, the power door lock system is integrated with the Remote Keyless Entry (RKE) system. For information on RKE, see appropriate REMOTE KEYLESS ENTRY SYSTEMS article.
Driver's Door Module (DDM) directly controls Driver's door lock actuator, power window motor and outside mirror. Each passenger door module directly controls door lock, power window and mirror functions for that particular door. DDM sends and receives messages from Driver Door Switch Assembly (DDSA), Right Front Door Module (RFDM), Right Middle Door Module (RMDM), Right Rear Door Module (RRDM), Left Middle Door Module (LMDM) and Left Rear Door Module (LRDM) over Simple Bus Interface (SBI) line. DDM also sends and receives messages from other vehicle system modules over class 2 data line. Rear Integration Module (RIM) has no actual inputs or outputs related to door locking, but is master logic controller for lock system.