Electronic Brake Distribution (EBD)
WARNING: This page is about a different car, the 2004 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
The EBD controls rear brake pressure and acts as an electronic proportioning valve. The EBD is integral to the ABS control module and is not repaired separately. Depending on the coherency of the sensor inputs received and the existence of internal faults, the ABS module may set a DTC(s) and disable EBD illuminating the red brake warning indicator.