Instrument Panel Module
WARNING: This page is about a different car, the 2001 Cadillac Seville. However, it is still accessible from the selected car via links, so may be relevant.
Instrument Panel Module (IPM) functions include front Heating Ventilation Air Conditioning (HVAC) air delivery, HVAC temperature controls, ambient light sensor input, headlight twilight delay input, foglight switch input, instrument panel dimmer switch input, traction control switch input, interior lights switch input, key-in-ignition input, fuel door release switch input, trunk lid release switch input and ignition switch headlight control.