Pinpoint Test W : DTC: U0257:00: Notes
WARNING: This page is about a different car, the 2020 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Module Communications Network for schematic and connector information.
Normal Operation and Fault Conditions
The SCME and the FCIM communicate using the HS-CAN3 and MS-CAN.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0257:00 | Lost Communication with Front Controls / Display Interface Module: No Sub Type Information | Set by the SCME whenever it has lost communication to the FCIM while SCME input voltage is between 10 and 15.5 volts. |
Possible Causes
- Module communication
- SCME
- FCIM