DTC U0428: Invalid Data Received from the Steering Angle Sensor Module: Description
WARNING: This page is about a different car, the 2013 Ford Fiesta. However, it is still accessible from the selected car via links, so may be relevant.
The SASM broadcasts the absolute steering angle value to the PSCM over the HS-CAN at predefined intervals during every drive cycle from the first ignition ON status. See Pinpoint Test U: Invalid Data Received From The Steering Angle Sensor Module (SASM)