Air Distribution
WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
The HVAC control module controls the mode actuator in order to distribute airflow to a desired outlet. The mode switch provides the vehicle operator with the ability to override the automatic setting. When the mode switch is moved to the heater through defrost positions, the A/C compressor clutch engages and the recirculation actuator will be moved to the outside air position. When VENT is pressed, the following will occur:
- The mode valve will be moved to the panel position.
- The recirculation actuator will follow user request if blower is ON and power mode is in Run.
- The A/C compressor will follow user request if blower is ON and power mode is in Run.