Driver Door Module (Ddm)

The Driver's Door Module (DDM) directly controls the driver's door lock actuator motor. The DDM receives and forwards driver's door switch lock request messages to the Remote Function Actuator (RFA) via the serial data link. The RFA receives the request message and examines it for lockout prevention criteria. If the conditions are proper, the RFA sends a lock or unlock command message back to the DDM. The DDM forwards door lock messages received from the RFA to the Passenger Door Module (PDM) and the Rear Door Module (RDM) over a Simple Bus Interface (SBI) line. The DDM also contains a class 2 serial interface which communicates with other vehicle system modules. The LH front door power window and the outside power mirror are also controlled through the DDM. Battery voltage is always applied to the DDM through the RAP circuit breaker located in the Underhood Maxifuse(R) Block.