Memory Seat/Mirror Module: Operation
WARNING: This page is about a different car, the 2005 Dodge Grand Caravan, 2005 Dodge Caravan, and 2005 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
When memory system operation is requested (depressing of the memory switch), a resistor multi-plexed signal is sent from the memory switch to the Body Control Module (BCM). The BCM will then send the appropriate signals out to the Memory Seat/Mirror Module (MSMM), the MSMM then applies the voltage supply to the power seat track or side-view mirror if the proper requirements are met. The vehicle speed must equal zero and the transmission must be in park or neutral in order for the memory system to function.