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 U0103:00
Some 2025-2026 Aviator vehicles may exhibit diagnostic trouble code (DTC) U0103:00:80 stored in the powertrain control module (PCM) when a diagnostic self-test is performed. This may be due to a software update…
FORD, LINCOLN
Reported code forms U0103
Some 2020-2021 Aviator and Explorer vehicles built on and before 24-Feb-2021 may experience an intermittent no crank, inoperative remote start, and/or an illuminated wrench light with diagnostic trouble codes (DTCs)…
FORD, LINCOLN
Reported code forms U0103
Some 2020-2021 Aviator and Explorer vehicles may experience an intermittent no crank, inoperative remote start, and/or an illuminated wrench light with diagnostic trouble codes (DTCs) P07E4, B135C and/or U0103. This may…
Check vehicle applicability
4A 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.