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U0146

Code meaning and manufacturer information

U0146

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

26

Original wording in English

TSB_2076994_8

AUDI

Reported code forms U014600

This bulletin provides information when there are DTCs for the 48V starter generator; P0A1A00 P19F800 P0A1E00 U014600 U300100 P10F300 P056200 P056100 P065200 P069800.

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TSB_2076994_6

AUDI

Reported code forms U014600

This bulletin provides information when there are DTCs for the 48V starter generator; P0A1A00 P19F800 P0A1E00 U014600 U300100 P10F300 P056200 P056100 P065200 P069800.

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SSM 54420

FORD

Reported code forms U0146

Some 2023-2026 F-Super Duty vehicles built on or before 01-Oct-2025 may exhibit a "Hill Start Assist Unavailable" and/or "Parking Brake Limited Function" message at vehicle start-up with diagnostic trouble codes (DTCs)…

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SSM 54351

FORD

Reported code forms U0146

Some 2022-2024 Expedition/Navigator vehicles equipped with driver assistance features and minor feature codes DBCBB and DBCBC may exhibit driver assistance feature warning messages displayed in the instrument panel…

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SSM 54160

FORD

Reported code forms U0146

Some 2023-2025 F-Super Duty vehicles may exhibit a "Hill Start Assist Unavailable" and/or "Parking Brake Limited Function" message at vehicle start-up with diagnostic trouble codes (DTCs) U0151, U023A, U0159, and/or…

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SSM 53892

FORD

Reported code forms U0146

Some 2023-2025 F-Super Duty vehicles may exhibit a "Hill Start Assist Unavailable" and/or "Parking Brake Limited Function" message at vehicle start-up with diagnostic trouble codes (DTC) U0151, U023A, U0159, and/or…

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Check vehicle applicability

135

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

MakeModelModel year
AudiA42024
AudiA42023
AudiA42022
AudiA42021
AudiA42010
AudiA42009
AudiA4 ALLROAD2014
AudiA4 ALLROAD2013
AudiA4 AVANT2012
AudiA4 AVANT2011
AudiA52014
AudiA52013
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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.