Control Components - Electronic Automatic Temperature Control (EATC): Notes

With the use of a micro-controller, 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 micro-controller 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