Air Distribution
WARNING: This page is about a different car, the 2003 Pontiac Sunfire and 2003 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
The HVAC control assembly controls the mode actuator, by means of a cable, to distribute airflow to a desired outlet. When the mode door is moved to the mix-blend or defrost positions, the A/C compressor clutch engages and the recirculation actuator will be moved to the outside air position. Regardless of the mode setting, a small amount of air will be diverted to the defrost ducts to reduce windshield fogging.