Dual-Zone Electronic Automatic Temperature Control: Notes
WARNING: This page is about a different car, the 2006 Mercury Mountaineer and 2006 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
The dual-zone electronic automatic temperature control (EATC) module analyzes input from the following major sources:
- Temperature, airflow direction and blower selection (made by the vehicle occupants)
- In-vehicle temperature
- Ambient temperature
- Sunload
- Vehicle speed
- Engine coolant temperature
Using these inputs, the dual-zone EATC module determines the correct conditions for the following outputs:
- A/C compressor operation
- Blower speed
- LH side temperature blend door position
- RH side temperature blend door position
- Air inlet mode door position
- Defrost mode door position
- Panel mode door position
- Floor mode door position