Door Modules

Each front door contains a Door Module. Both door modules contain logic to control the mirror motors and memory to retain mirror position information. The Driver Door Module (DDM) also contains circuitry to communicate over the Class 2 bus. The mirror positions are determined by the voltage levels sent to the respective door module by the position sensors. The door modules monitor the voltage drop across these sensors and Store those values in memory, whenever a memory switch is held to the set position. These values are called from memory and are used to reposition the mirrors when a memory recall is selected.