Hydraulic Control Unit (HCU)
WARNING: This page is about a different car, the 2018 Ford Police Interceptor Utility and 2018 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
The HCU contains the solenoid valves, the hydraulic pump motor and the pressure sensor used by the ABS for the ABS and stability control systems. While the ABS module can be serviced separately from the HCU, a new HCU comes with a new ABS module.