The Bendix+ EC-80 Electronic Control Unit (ECU) is a member of a family of three Bendix+-brand electronic Antilock Braking System (ABS) devices used to help improve the braking characteristics of air-braked heavy and medium-duty trucks, tractors, and buses. The Bendix+ Automatic Traction Control (ATC) EC-80 ECU provides standard ABS; improves vehicle traction during acceleration; and aid lateral stability while driving through curves. The Bendix+ ATC ECU communicates. with the engine's Controller to provide Engine Torque Limiting (ETL), and/or use Differential Braking (DB) to make brake applications at individual wheels.