P0AFA
Hybrid/EV Battery Pack Cooling System Performance
Thermal · Powertrain
high
What does this code mean?
The battery thermal management cooling performance is below the expected range.
This is a generic OBD-II / UDS code — the meaning is standardized across manufacturers.
Possible symptoms
Overheating
Reduced power
Slow charging
Possible causes
- 1.Coolant pump fault
- 2.Low coolant level
- 3.Blocked radiator or fans
- 4.Temperature sensor fault
These are possible causes — a professional inspection is required to confirm.
Diagnostic procedure & recommended checks
- Check coolant level and pump operation
- Check fans and airflow
- Read thermal DTCs
Recommended actions
- Professional inspection of the thermal management system
Can I drive?
Yes, briefly — avoid fast charging and heavy load
When to contact a professional
As soon as possible; sustained overheating damages the pack.
Related Fix & Solve guides
Diagnostic information is provided for informational purposes and does not replace professional inspection. High-voltage systems must only be serviced by qualified personnel.