The Bendix® Intellipark® Dash Electronic Control Unit (DECU) is the driver-interface component of the electronic parking brake system. It replaces traditional pneumatic push-pull knobs (like the MV-3® or PP-DC®) with ergonomic electronic switches. The DECU communicates driver commands and system status to the Park Valve Module (PVM), which physically exhausts or delivers air to the parking brakes.