Vehicles With Electronic Automatic Temperature Control (EATC)
WARNING: This page is about a different car, the 2004 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.
Vehicles with EATC have an operating panel which has several switches. Two switches for setting the interior temperature, two switches for the blower control, four switches for controlling the air flow and one ON/OFF switch each for the A/C and recirculated air mode. Furthermore, the ON and OFF switch for the EATC and the operating switches for the heated windshield and heated rear window are all located on the EATC control panel. The EATC control module is integral with the control panel. In contrast to the manual A/C system, the EATC has a self-diagnosis facility.
Recirculated air mode is activated by an ON/OFF switch which controls an actuator (a DC motor).