Pinpoint Test S : U0256: Notes
WARNING: This page is about a different car, the 2018 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.
Refer to Audio System/Navigation for schematic and connector information.
Normal Operation and Fault Conditions
The PAM communicates with the PCM on the HS-CAN.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0256 | Lost Communication With Front Controls Interface Module "A": No Subtype Information | A CMDTC that sets when the PAM is unable to communicate with the FCIM for 0.5 seconds or more after the active park assist system has been activated. |
Possible Sources
- Communication concern
- FCIM
- PAM