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U0146

Code meaning and manufacturer information

OBD-II / DTC

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

26

Original wording in English

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AUDI

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

AUDI

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

SSM 54420 ↗

FORD

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) U0151, U023A, U0159 and/or U0146 stored in the anti-lock brake system (ABS) module. These DTCs and/or U0415 may…

SSM 54351 ↗

FORD

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 cluster (IPC). Additionally, some modules may store invalid data/lost communication related diagnostic trouble code…

Check vehicle applicability

135

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

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MakeModelModel year
AudiA4 ↗2024
AudiA4 ↗2023
AudiA4 ↗2022
AudiA4 ↗2021
AudiA4 ↗2010
AudiA4 ↗2009
AudiA4 ALLROAD ↗2014
AudiA4 ALLROAD ↗2013

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.