Reference meaning
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.
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A 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.
Scan worksheet →Manufacturer communications
3Original wording in English
FORD
Some 2023 F-150 vehicles equipped with a 3.5L PowerBoost engine may exhibit a Trailer Brake System Fault See Manual message in the instrument panel cluster (IPC) and/or diagnostic trouble codes (DTCs) U0140:87, U0143:87, and/or U0444:82 stored in the trailer module (TRM). These symptoms can occur without a trailer connected to t…
FORD
Some 2021-2022 F-150 vehicles may still have a false alarm activation with a trailer connected and/or diagnostic trouble code (DTC) U0143:87 stored in the TRM after technical service bulletin (TSB) 22-2122 was completed. This was due to a software release issue. To correct the condition download and run the TRM configuration app…
FORD
Some 2021 F-150 vehicles may exhibit diagnostic trouble code (DTC) U0143:87 stored in the trailer module (TRM). This may be due to various software parameters in the TRM. This DTC should be disregarded as it does not cause any observable concerns or warning messages and does not affect vehicle performance or durability. Ford is …
Check vehicle applicability
3A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
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.