Dual-Zone Electronic Automatic Temperature Control
The dual-zone EATC module analyzes input from the following major sources:
- Temperature, function and blower selection (made by the vehicle occupants)
- In-vehicle temperature
- In-vehicle humidity (Navigator only)
- 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
- Panel airflow door position
- Airflow door positions
- Coolant control valve
Airflow Control Components - Dual-Zone EATC