U027CLost Communication With Off-Board Charger Control Module
- Generic OBD-II code · Network
- How the car detects it
- DC fast charging uses a charger outside the car, so the vehicle needs a controller that negotiates with the station. Ford has a module with almost this name in its battery-electric vehicles: the off-board charger controller (OBCC) of the Mustang Mach-E, E-Transit and F-150 Lightning. Ford reprogrammed it in program 22B48 and SSM 50923 because some stations aborted DC charging, and SSM 52130 tells technicians to disregard P1A3C in the OBCC after an interrupted fast-charge session. Whether Ford stores U027C when the OBCC goes silent is not published, and no other maker documents the code. Without this module DC fast charging is not possible, while AC charging through the on-board charger normally still works. Driving is unaffected.
- What you may notice
- DC fast charging fails or does not start
- Charge failure notification on screen or in the app
- AC charging still possible
- Likely causes
- LikelySupply or wake-up of the fast-charge controller missing
- PossibleController software outdated or update failed
- PossibleBus wiring or connector to the controller faulty
- RareFast-charge controller internally faulty
- Repair
- Hard · Usually a job for a workshop.Typical cost: €0 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.