HVAC Control Module

WARNING: This page is about a different car, the 2003 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

The HVAC control module is a non-class 2 device that interfaces between the operator and the HVAC system to maintain air temperature and air distribution settings. The ignition 3 and battery positive voltage circuits provide power to the control module. The control modules supports the following features:

Fig 1: Control Modules Features Table

Courtesy of GENERAL MOTORS CORP.