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U0140

Code meaning and manufacturer information

U0140

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.

Manufacturer communications

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Original wording in English

TSB 24-2117

FORD

Reported code forms U0140:87

Some 2024 F-150 non-Lightning vehicles equipped with minor feature codes C2BAW and FDDAA may exhibit an intermittent Trailer Brake System Fault See Manual message in the instrument panel cluster (IPC), inoperative…

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TSB 24-2116

FORD

Reported code forms U0140:87

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,…

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SSM 52184

FORD

Reported code forms U0140:87

Some 2023 F-150 hybrid vehicles built on 24-Oct-2022 and through 26-Oct-2022 equipped with a 3.5L Power Boost engine may exhibit DTC U0438:82 in the IPC and/or U0140:87 in the TRM. This may also be accompanied by a…

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TSB 22-2256

FORD

Reported code forms U0140:82

Some 2021 F-150 vehicles may exhibit diagnostic trouble code (DTC) U0140:82 stored in the trailer module (TRM). This may be due to software parameters in various modules. To correct the condition, follow the Service…

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SSM 50789

FORD

Reported code forms U0140:82

Some 2021 F-150 and 2022 F-Super Duty vehicles may exhibit diagnostic trouble code (DTC) U0140:82 stored in the trailer module (TRM) after completing a TRM software update. This may be due to software parameters in the…

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SSM 48563

FORD

Reported code forms U0140

SSM 48563 - 2017-2020 F-150 - No Crank/No Start, Multiple Illuminated Warning Indicators And/Or DTCs Some 2017-2020 F-150 vehicles may exhibit a no crank/no start, auto start stop inoperative, illuminated malfunction…

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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Historical vehicle association; OBD-II compatibility is not established by this record.

MakeModelModel year
FordF-1502024
FordF-1502023
FordF-1502021
FordF-1502020
FordF-1502019
FordF-1502018
FordF-1502017
FordF-1502016
FordF-1502015

Historical records · 1 · Historical vehicle association; OBD-II compatibility is not established by this record.

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.

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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.