Power Seat Control Module: Description and Operation

Seats - Driver Seat Module
The Driver Seat Module (DSM) is located under the driver's seat and is attached to the seat frame. The DSM will:
^ control the movements of the driver's seat and power exterior rearview mirrors
^ store and recall seat and mirror positions of two personalized settings
^ receive all power seat and mirror control inputs from the Driver's Door Module (DDM) through the J1850 communication network
^ move the exterior rearview mirrors downward when the transmission is shifted into reverse, if enabled.

Seats - Driver Door Module
The driver's seat regulator control switch is connected to the Driver Door Module (DDM). The DDM receives the driver's seat regulator control switch input and communicates the direction of movement over the J1850 communication network.