Diagnostic Aids
WARNING: This page is about a different car, the 2016 Lincoln MKS. However, it is still accessible from the selected car via links, so may be relevant.
When DTC U0300:00 is set, the PSCM removes steering assist, enters into manual mode and transmits an invalid steering angle message over the HS-CAN. The module also sends a message to the IPC to display POWER STEERING ASSIST FAULT in the message center.