Automatic Operation

In automatic operation, the HVAC control module will maintain the comfort level inside of the vehicle by controlling the A/C compressor clutch, the blower motor, the air temperature actuators, mode actuator and recirculation. To place the HVAC system in Automatic mode you must set the temperature and press the drivers temperature knob. Once the desired temperature is reached, the blower motor, mode, recirculation and temperature actuators will automatically be adjusted to maintain the temperature selected. The HVAC control module performs the following functions to maintain the desired air temperature:
^ Monitor the following sensors:
- [1][2]Inside air temperature sensor
- Ambient air temperature sensor
- Sunload sensor
^ Regulate blower motor speed
^ Position the air temperature actuator
^ Position the mode actuator
^ Position the recirculation actuator
^ Request A/C operation