Power Steering Control Module (PSCM)
WARNING: This page is about a different car, the 2022 Ford Bronco Sport. However, it is still accessible from the selected car via links, so may be relevant.
The PSCM is the ECU for the EPAS system. The module monitors all sensor inputs and FD-CAN messages relating to the EPAS system and directly controls the output of the EPAS motor.