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Powertrain

P0A7B

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

2

Original wording in English

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37451 ↗

VOLVO

This is a Technical Journal: MVBM-U007700 set together with ECM-P0A7B68 at PDS. Delete the DTC ́s. Do not reload MVBM software. IF the DTC ́s comes back together with MIL check engine light, perform the MVBM software

24-NA-160 ↗

CHEVROLET

This service bulletin provides a procedure to purge the air out of the Hybrid/Electric Vehicle Battery Coolant system to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P0A7B and/or P0E3C Set.

Check vehicle applicability

15

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
ChevroletCORVETTE E-RAY ↗2024
VolvoS60MHEV ↗2025
VolvoS90MHEV ↗2026
VolvoS90MHEV ↗2025
VolvoV60CCMHEV ↗2026
VolvoV60CCMHEV ↗2025
VolvoV60MHEV ↗2026
VolvoV60MHEV ↗2025

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.