System Airflow Description - EATC/DATC: Defrost
WARNING: This page is about a different car, the 2003 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
When DEFROST is selected:
- The recirc request button is enabled. If the recirc request button is selected (indicator on), the air inlet door vacuum control motor will be at full vacuum, closing off outside air from entering the passenger compartment. If the recirc request button is not selected (indicator off), the air inlet door vacuum control motor will be at no vacuum, admitting only outside air into the passenger compartment.
- The panel door and floor/defrost door vacuum control motors are at no vacuum, directing airflow to the defroster duct and side window demisters. A small amount of airflow from the instrument panel A/C registers and floor duct will be present.
- Blended air temperature is available.
- The A/C request button will not illuminate and is disabled. To reduce fogging, the A/C compressor will operate automatically if the outside temperature is above approximately 2°C (35°F).
- The blower motor is on.
- The auxiliary blower motor is enabled, if equipped.