OBD
P0A9A
Hybrid/EV Battery Pack Cooling Fan 2 Control Circuit High
What it means
P0A9A means Hybrid/EV Battery Pack Cooling Fan 2 Control Circuit High.
Check these first
- A failed cooling fan 2 motor
- Wiring or connector damage at fan 2
- A short to voltage in the fan 2 circuit
- A high battery pack temperature
What to do next
- Command cooling fan 2 on with a scan tool
- Test the fan 2 control circuit for a short to voltage
- Inspect the fan 2 wiring and connectors
- Check the battery pack temperature
- Replace the fan 2 motor if the circuit tests good
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.