Contents Wiring diagrams Section: HVAC Systems - Manual All sections

HVAC Control Module Buick Century VI

HVAC Systems - Manual 1 illustration

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. Two integrated potentiometers control air temperature door position and blower motor speed. The integrated vacuum system controls the mode door position. The control assembly supports the following features

Scheme 76

Scheme 76: HVAC Control Module