Memory Mirrors
WARNING: This page is about a different car, the 2004 Dodge Grand Caravan, 2004 Dodge Caravan, and 2004 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
The driver side view mirror contains vertical and horizontal bi-directional drive positioning motors and position sensors. The MSMM provides a 5-volt reference on the signal circuit to each position sensor. The sensors share a common ground circuit. The MSMM monitors the position of the mirror motors by measuring the voltage on each signal circuit. When a memory position is set, the MSMM monitors and stores the position of the outside mirror. The MSMM adjusts the mirror to the appropriate positions when a memory recall message is received from the RKE or is requested from the memory set switch.
The power mirror switch during non-memory operation operates the mirror independently of the MSMM.