Control Components - Electronic Automatic Temperature Control (EATC): Notes
With the use of a microcontroller, the remote climate control module (18C612) analyzes input from the following major sources:
- Integrated control panel (temperature, air distribution and blower selection)
- In-vehicle temperature
- Ambient temperature
- Sunload
- Vehicle speed
- Engine coolant temperature
Using these inputs, the microcontroller determines the correct conditions for the following outputs:
- A/C compressor (19703) operation
- Blower speed
- Air temperature blend door position
- Airflow mode door position
- Defroster door position
- Air inlet door position