Which cars report code U0256?

Code U0256 is named in 3 US owner complaints. Models: 3, model years 2013–2020. Ford F-150, Ford Focus, Ford Fusion.

U0256 code: Lost Communication With Front Controls Interface Module A

Q: What does code U0256 mean?

Lost Communication With Front Controls Interface Module A. How to read U0256: the letter U means network communication between modules; the second digit 0 marks a generic SAE code shared by all makes; the last three characters 256 identify the specific fault.

Code U0256 is named in 3 US owner complaints. Models: 3, model years 2013–2020.

What the code means

Lost Communication With Front Controls Interface Module A. Generic meaning per SAE J2012 (the same for all makes).

How to read U0256: the letter U means network communication between modules; the second digit 0 marks a generic SAE code shared by all makes; the last three characters 256 identify the specific fault.

Codes for body, door, climate, instrument cluster and infotainment modules. On a damaged car they often point to wiring or a connector damaged in the impact zone, or to water inside.

Key figures

Complaints with this code: 3
Models: 3
Model years: 2013–2020

Which models and years

Models whose owners name this code (3). Years link to the model year problems page.

Model	Years	Complaints
Ford F-150	2020	1
Ford Focus	2018	1
Ford Fusion	2013	1

Components named together with the code

Component as the owner filed it (one complaint can list several).

Electrical system 3
Powertrain 2
Exterior lighting 1
Forward collision avoidance 1
Other 1

Complaints by model year

2013 1
2018 1
2020 1

What to do if an auction car has this code

Check wiring and connectors in the impact zone and signs of water inside.

What owners report

Excerpts of owner complaints in the original wording. Owner statements not verified by the regulator; personal data removed.

While driving I will get a wrench symbol with a bunch of codes pop up U0121:00:28 U0131:00:28 U0137:00:28 U0164:00:28 U0199:00:28 U0200:00:28 U0212:00:28 U0252:00:28 U0256:00:28 U1012:00:28 P0557:00:28 P1935:00:68 P193E:00:28 I have also had it jerk while driving ( went down into first gear) while having no power to…
Ford F-150 2020 · 2026-08
When this happens, my ecm displays the following codes, P193E: a/c clutch request signal, U0199: lost communication with door control module a, U0200: lost communication with door control module b, and U0256: lost communications front controls interface module.
Ford Fusion 2013 · 2018-07

Related codes

Sources: public official US data (owner complaints) and the SAE J2012 standard. Complaints are owner statements not verified by the regulator. A code from a complaint does not replace a scan tool diagnosis. Data updated 2026-11-10.