OBD-II code · Powertrain (generic)
P0BC7 Hybrid/EV Battery Pack Cooling Fan 1 Sense Circuit/Open
The HV battery pack cooling fan 1 sense circuit reports a sense circuit/open fault. Fan speed feedback is unreliable.
Is it safe to drive with P0BC7?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyOpen in sense wire
- PossibleFan tachometer failed
- Less likelyPin pushed back out of connector body
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 1 Sense, Wiring Harness, Bms
Related codes
- P0BC4Hybrid/EV Battery Temperature Sensor E Circuit Low
- P0BC5Hybrid/EV Battery Temperature Sensor E Circuit High
- P0BC6Hybrid/EV Battery Temperature Sensor E Circuit Intermittent/Erratic
- P0BC8Hybrid/EV Battery Pack Cooling Fan 1 Sense Range/Performance
- P0BC9Hybrid/EV Battery Pack Cooling Fan 1 Sense Circuit Low
- P0BCAHybrid/EV Battery Pack Cooling Fan 1 Sense Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.