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Powertrain

P003A

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.

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Manufacturer wording

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

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Manufacturer communications

19

Original wording in English

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AUDI

Summary of all Vin-4-Pin topics for August Check engine light after charging Rattle noise from sound generator Vehicle sound malfunction warning Oil leak from oil filter drain off valve CEL: P003A00 Turbo Boost control A CEL: P045600

AUDI

Summary of all Vin-4-Pin topics for August Check engine light after charging Rattle noise from sound generator Vehicle sound malfunction warning Oil leak from oil filter drain off valve CEL: P003A00 Turbo Boost control A CEL: P045600 excessive engine vibration

SSM 53328 ↗

FORD

Some 2020-2022 F-Super Duty vehicles equipped with a 6.7L engine may exhibit an illuminated malfunction indicator lamp (MIL), lack of power, and/or excessive turbo noise during operation, with diagnostic trouble codes (DTC) P003A, P0045, P0046, P0047, P0048, P0234, P0237, P0238, P0299, P132A, P226C, P2263, P2564, P2565, P2598, P…

23-NA-026 ↗

CADILLAC, CHEVROLET, GMC

This technical bulletin provides repair information to correct a customer concern of LM2 Engine Calibration Update for DTC P003A.

Check vehicle applicability

249

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
AudiA3 ↗2026
AudiA3 ↗2023
AudiA3 ↗2022
AudiA5 ↗2026
AudiA5 ↗2025
AudiQ4 E-TRON ↗2023
AudiQ4 E-TRON ↗2022
AudiQ4 SPORTBACK E-TRON ↗2023

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.