P0A84
Hybrid Battery Pack Cooling Fan 2 Performance
Cooling fan 2 of the HV battery does not deliver expected performance under thermal load.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
Symptoms
- EV/hybrid system warning light on
- Reduced power output or limp mode
- Charging may fail or be slowed
- Reduced electric range
Common causes
Ordered by how often each turns out to be the cause.
- Fan motor wornCommon
Parts involved
- Battery Cooling Fan 2
- Fan Motor
P0A84 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.