Savana 1/2 Ton Van V8-5.7L VIN R (2001)
Air Door Actuator / Motor: Description and Operation
AIR TEMPERATURE ACTUATORS
When a desired temperature setting is selected, a variable resistor is used to determine the air temperature actuators value. The air temperature door
position signal value is a varied voltage that is applied to the air temperature actuator motor. The motor opens the air mixture door to a position to divert
sufficient air past the heater core or evaporator to achieve the desired vehicle temperature. Ground for the air temperature actuator is provided by the
ground circuit.