Dual-Zone Electronic Automatic Temperature Control (EATC)
WARNING: This page is about a different car, the 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
The HVAC module analyzes input from the following major sources:
- Temperature, function and blower selection (made by the vehicle occupants)
- In-vehicle temperature sensor
- Ambient temperature sensor
- Solar amplifier (sunload sensor)
- Vehicle speed sensor
- Cylinder head temperature (CHT) sensor
Using these inputs, the HVAC module determines the correct conditions for the following outputs:
- A/C clutch engagement
- Blower speed
- Temperature blend door position
- Floor mode door position
- Panel/defrost mode door position
- Air inlet mode door position