OBD-II code · Powertrain (generic, extended)
P2BCD Battery Charging System Negative Contactor B Stuck Open
The negative contactor B of the battery charging system reports a stuck open condition. HV charging path cannot be commanded reliably.
Is it safe to drive with P2BCD?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyContactor contacts oxidised - high resistance
- PossibleContactor coil burned out
- Less likelyCarbon or debris buildup preventing free movement
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–8 h
- Emissions test
- Usually unaffected
- Parts involved
- Bcs Neg Contactor B, Wiring Harness, Bms
Related codes
- P0D10Battery Charging System Negative Contactor A Stuck Open
- P2D64Battery Charging System Negative Contactor C Stuck Open
- P2D72Battery Charging System Negative Contactor D Stuck Open
- P2BCABattery Charging System Positive Contactor B Control Circuit High
- P2BCBBattery Charging System Negative Contactor B Circuit
- P2BCCBattery Charging System Negative Contactor B Stuck Closed
- P2BCEBattery Charging System Negative Contactor B Control Circuit/Open
- P2BCFBattery Charging System Negative Contactor B Control Circuit Range/Performance
- P2BD0Battery Charging System Negative Contactor B Control Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.