System Airflow Description - EATC: Auto
WARNING: This page is about a different car, the 2004 Ford Pickup, 2004 Ford F550 Super Duty, 2004 Ford F450 Super Duty, 2004 Ford Excursion, and 2004 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
When AUTO is selected:
- The temperature control setting is manually set to the desired setting.
- The air inlet door vacuum control motor is automatically controlled by the EATC module, based on the temperature setting.
- The mode door vacuum control motors are automatically controlled by the EATC module, based on the temperature settings.
- The heater control valve is automatically controlled by the EATC module, based on the temperature settings.
- The A/C compressor is automatically controlled by the EATC module, based on the temperature settings. The A/C compressor will not operate if the outside temperature is lower than approximately 6°C (43°F).
- The blower motor is on. The blower speed is automatically controlled by the EATC module based on the temperature setting, but can be manually overridden.
- The auxiliary blower motor (if equipped) is enabled. However, the air cannot be cooled unless the A/C is operating on the main climate control system.