EATC Module

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.

The EATC Module:

is located in the instrument panel.
has a vacuum fluorescent display for displaying set temperature, function and diagnostic trouble codes (DTCs).
utilizes an on-board diagnostic (OBD) feature to supply the technician with diagnostic trouble codes (DTCs). These DTCs help direct the technician to the inoperative component.