Instrument Panel Integration Module (IPM)
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 IPM is wired to the class 2 serial data line. The various IPM input and output circuits are described in the corresponding functional areas as indicated on the IPM electrical schematics.
The IPM functions include the following:
- Ambient light sensor input and twilight delay input for headlights control.
- Front HVAC air delivery and temperature controls.
- IP dimmer switch input.
- Ignition switch headlight control.
- Interior lamps switch input.
- Key-in-ignition switch input from the ignition switch.
- Rear compartment lid release switch input.
- Traction control switch input.