HVAC Control Module - Automatic Climate Control
WARNING: This page is about a different car, the 2003 Saturn LW300, 2003 Saturn LW200, 2003 Saturn L300, and 2003 Saturn L200. However, it is still accessible from the selected car via links, so may be relevant.
The HVAC control module is a class 2 device that interfaces between the operator and the HVAC system to maintain air temperature and distribution settings. To change the HVAC display from degrees Fahrenheit to degrees Celsius press the Auto, Econ and Mode buttons together for 3 to 5 seconds. The battery positive voltage and ignition 3 voltage circuits provide power to the control module. The Body Control Module (BCM), which is the vehicle mode master, provides a device on signal. The control module supports the following features:
Air Delivery Description and Operation
| Feature | Availability |
|---|---|
| Afterblow | No |
| Purge | Yes |
| Personalization | No |
| Actuator Calibration | No |