P2BC8
Battery Charging System Positive Contactor B Control Circuit Range/Performance
The positive contactor B of the battery charging system reports a control circuit range/performance condition. HV charging path cannot be commanded reliably.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: hard
Common causes
Ordered by how often each turns out to be the cause.
- Coil resistance driftedCommon
- High-resistance contact in connectorPossible
- Sensor element aged beyond calibration windowLess likely
Parts involved
- Bcs Pos Contactor B
- Wiring Harness
- Bms
P2BC8 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.