Express 1500 AWD V8-5.3L VIN T (2004)
Control Assembly: Description and Operation
HVAC CONTROL ASSEMBLY
The HVAC control assembly is a non-class 2 device that interfaces between the operator and the HVAC system to maintain air temperature and
distribution settings. The ignition 3 voltage circuit provides 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 features as in the
table.
