OBD-II code · Powertrain (generic)
P0BC0 Hybrid/EV Battery Pack Cooling Fan Supply Voltage Circuit Low
The supply voltage circuit of the HV battery pack cooling fan reports a circuit low condition. Cooling fan operation may be impaired.
Is it safe to drive with P0BC0?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyWire shorted to ground
- PossibleSupply rail collapsed
- Less likelyConnector pins corroded - high contact resistance
Symptoms
- EV/hybrid system warning light on
- Reduced power output or limp mode
- Charging may fail or be slowed
- Reduced electric range
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–3 h
- Emissions test
- Usually unaffected
- Parts involved
- Hv Battery Cooling Fan Supply, Wiring Harness, Bms
Related codes
- P0BBDHybrid Battery Voltage Sense Internal Module Performance
- P0BBEHybrid/EV Battery Pack Voltage Variation
- P0BBFHybrid/EV Battery Pack Cooling Fan Supply Voltage Circuit/Open
- P0BC1Hybrid/EV Battery Pack Cooling Fan Supply Voltage Circuit High
- P0BC2Hybrid/EV Battery Temperature Sensor E Circuit
- P0BC3Hybrid/EV Battery Temperature Sensor E Circuit Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.