Memory Mirrors

On models equipped with the optional memory system, each door module also receives a hard-wired input from the two power mirror motor position potentiometers that are integral to each power mirror. Each door module then stores the Driver 1 and Driver 2 mirror position information for its respective mirror. When the DDM receives a Driver 1 or Driver 2 memory recall message from the memory switch on the driver side front door trim panel or from the Remote Keyless Entry (RKE) receiver in the PDM, the DDM positions the driver side mirror and sends a memory recall message back to the PDM over the PCI data bus to position the passenger side mirror. When the memory system requests a recall of the stored mirror position, the DDM and the PDM are able to duplicate the stored mirror positions by moving the mirror motors until the potentiometer readings match the stored values.