OBD-II code · Powertrain (generic, extended)
P2BD0 Battery Charging System Negative Contactor B Control Circuit Low
The negative contactor B of the battery charging system reports a control circuit low condition. HV charging path cannot be commanded reliably.
Is it safe to drive with P2BD0?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyControl wire shorted to ground
- PossibleInternal short in contactor coil
- Less likelyConnector pins corroded - high contact resistance
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
- P0D13Battery Charging System Negative Contactor A Control Circuit Low
- P2D67Battery Charging System Negative Contactor C Control Circuit Low
- P2D75Battery Charging System Negative Contactor D Control Circuit Low
- P2BCDBattery Charging System Negative Contactor B Stuck Open
- P2BCEBattery Charging System Negative Contactor B Control Circuit/Open
- P2BCFBattery Charging System Negative Contactor B Control Circuit Range/Performance
- P2BD1Battery Charging System Negative Contactor B Control Circuit High
- P2BD2Exhaust Aftertreatment System A Leak
- P2BD3Exhaust Aftertreatment System B Leak
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.