P0C32
Hybrid/EV Battery Cooling System A Performance
The HV battery cooling system A does not maintain target temperatures under load. Coolant flow, radiator fouling, or pump output reduced.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: hard
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.
- Radiator fins fouledCommon
- Coolant pump output degradedPossible
- Pack cell imbalance approaching service thresholdLess likely
Parts involved
- Hv Battery Cooling System A
- Battery Pack Coolant Loop
P0C32 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.