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
3Original wording in English
LINCOLN
Reported code forms U0401
Some 2017 MKZ vehicles may exhibit a check headlamp message displayed in IPC after a remote start event and may also exhibit Diagnostic Trouble Codes (DTC): U0401, U0253, and/or U0155 in the Headlamp Control Module…
LINCOLN
Reported code forms U0401
SOME 2017 MKZ VEHICLES MAY EXHIBIT A CHECK HEADLAMP MESSAGE AFTER A REMOTE START EVENT AND MAY ALSO EXHIBIT DIAGNOSTIC TROUBLE CODES (DTC): U0401, U0253, AND/OR U0155. ENGINEERING IS CURRENTLY INVESTIGATING THIS…
FORD, LINCOLN
Reported code forms U0401
LINCOLN/FORD: AN INTERMITTENT BLIND SPORT OR CROSS TRAFFIC ALERT (BLIS/CTA) SYSTEM HAS FAULTS WITH DIAGNOSTIC TROUBLE CODES (DTC) U0401 AND/OR U0402 IN SIDE OBJECT DETECTION (SOD) MODULES NEED TO BE CORRECTED. MODEL…
Check vehicle applicability
3A 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.