Hydraulic and Electronic Control Unit (HECU)

WARNING: This page is about a different car, the 2003 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.

The Hydraulic and Electronic Control Unit (HECU) is an integrated unit. The HECU consists of:

hydraulic control unit (HCU) consisting of an aluminum block containing solenoid valves and a pump motor
electronic control unit (ECU) consisting of a printed circuit board with microprocessors, integrated software and the magnetic coils for driving the solenoid valves in the HCU

Both the HCU and ECU are serviceable parts, but neither is repairable.