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Home >> Buick >> 2005 >> Century Base >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC System - Automatic >> Description and Operation >> Air Temperature Description and Operation >> HVAC Control Components >> HVAC Control Module >> Notes

HVAC Control Module: Notes

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. The battery positive and ignition 3 voltage circuits provide power to the HVAC control module. The HVAC control module communicates the mode door position to the vacuum control assembly through five solenoid control circuits. The control assembly supports the following features:

Air Temperature Description and Operation

Feature Availability
Afterblow No
Purge Yes
Personalization No
Actuator Calibration No
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