Temperature Control
WARNING: This page is about a different car, the 2001 Chevrolet Malibu and 2000 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
Temperature is controlled according to position of temperature selector on A/C-heater control panel. An electric motor (air temperature actuator) is used to control temperature valve (door) based on input from temperature selector. Temperature valve controls airflow through heater core as temperature selector is moved through its full travel.