Memory Set Switch: Operation
WARNING: This page is about a different car, the 2004 Chrysler Pacifica. However, it is still accessible from the selected car via links, so may be relevant.
When any of the memory switches are depressed, a resistance signal is sent to the Driver Door Module via hard wired connections. The memory set switch LED will flash red when pressed until a position button is pressed or the system times out. The driver door module then sends the request to the Memory Heated Seat Adjustable Pedal Module (MHSAPM) via the PCI data bus circuit. The MHSAPM is responsible for controlling the 12v battery feed and ground path to the power seat track or adjustable pedal motor(s) to control the seat or pedal assembly accordingly.