Dash Integration Module (DIM)

WARNING: This page is about a different car, the 2002 Pontiac Bonneville. However, it is still accessible from the selected car via links, so may be relevant.

The DIM is wired to the class 2 serial data line. The various DIM input and output circuits are described in the corresponding functional areas as indicated on the DIM electrical schematics.

The DIM functions include the following:

Control of headlights and exterior lamps.
Horn relay control.
Interior lamps incandescent dimming.
Lamps On signal with wiper/washer.
Power moding control over class 2 serial data line.
Steering wheel controls.
Storage of the clock settings and, sending a message out on the class 2 serial data circuit in response to requests from other modules.