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Powertrain

P1A7B

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 communications

3

Original wording in English

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AUDI

This Pending Service Solution (PSS) requests that technicians create a record in the PSS databse in instances where DTC P1A7B00 is stored and the check engine light is illuminated.

AUDI

This bulletin provides informaiton when there is an error in Thermal management 00C5: MIL on, P1A7B00 Control module 1 for radiator fan, incorrect component installed.

AUDI

This bulletin provides informaiton when there is an error in Thermal management 00C5: MIL on, P1A7B00 Control module 1 for radiator fan, incorrect component installed.

Check vehicle applicability

13

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
AudiA5 ↗2026
AudiA5 ↗2025
AudiA6 ↗2026
AudiQ5 ↗2026
AudiQ5 ↗2025
AudiQ5 SPORTBACK ↗2026
AudiQ5 SPORTBACK ↗2025
AudiS5 ↗2026

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.