Electronic Automatic Temperature Control (EATC) Module
WARNING: This page is about a different car, the 2006 Ford Pickup, 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
The EATC module (if equipped) uses the universal asynchronous receiver-transmitter (UART) based protocol (UBP) communications network. The EATC module controls the automatic climate functions to maintain the vehicle at a constant temperature setting. For additional information, refer to CLIMATE CONTROL SYSTEM-GENERAL INFORMATION AND DIAGNOSTICS .