Circuit Description
WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
The outside rear view mirror switch supplies power and ground inputs to the memory seat module (MSM) for use in driving the driver and passenger outside rearview mirror horizontal and vertical motors. When the MSM recognizes the input combination, it moves the appropriate mirror motor in the requested direction. If the MSM sees the input combination for greater than 30 seconds, a DTC B1560, B1565, B1570 or B1575 is set and the mirror outputs are disabled.