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 instrument panel cluster (IPC) monitors the DIC mode switch and the DIC reset switch in order to perform certain functions. The IPC detects a switch activation when the signal circuit is low.