An ABS module, or ABS control module, refers to a car's anti-lock brake system, which controls the ABS system. The controls are directed in response to data that is gathered from the sensors placed around the car. The ABS module is usually found near the engine.
When an ABS module begins to fail or wear due to age, there are certain symptoms that can be detected early. The most obvious one for a driver occurs when the ABS warning light on the dashboard is illuminated. An ABS warning light can lead to an automatic disabling of any equipped-stability and traction-control systems.