Control Module HVAC: Description and Operation

HVAC CONTROL MODULE




The HVAC control module is a non-Class 2 device that interfaces between the operator and the HVAC system to maintain air temperature and distribution settings. The battery positive and ignition 3 voltage circuits provide power to the control assembly. The temperature door is controlled by cables. The control module supports the above features.

HVAC Control Module - Automatic Climate Control




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 above features.