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 memory select switch signal circuits are supplied 12 volts through a resistor and monitored within the memory seat module. When a memory select switch is pressed, the signal circuit is closed to ground and the signal circuit voltage is pulled low.