Diagnostic Aids
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.
DTC U0155:00 indicates that the IPC module cannot communicate over the HS-CAN bus. This could be due to a circuit fault in the HS-CAN bus or a IPC fault. Do not install a new EPAS assembly as part of the repair for a PSCM DTC U0155:00.