What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer communications
2Original wording in English
FORD
Reported code forms U0401
Some 2018-2019 F-Super Duty vehicles equipped with a 6.7L engine built on 1-Dec-2017 and through 1-Aug-2018 may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P2122, P2127, U0401, U0109, P0480, P008A,…
FORD
Reported code forms U0401:82
FORD 2009-2013 F650,F750: SERVICE INFORMATION REGARDING DIAGNOSTIC TROUBLE CODES: U041:68 AND U0401:82 IN THE HEATING VENTILATION AND AIR CONDITIONING MODULE. *LJ
Check vehicle applicability
7A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.