OBD-II code · Powertrain (generic, extended)
P2BD1 Battery Charging System Negative Contactor B Control Circuit High
The negative contactor B of the battery charging system reports a control circuit high condition. HV charging path cannot be commanded reliably.
Is it safe to drive with P2BD1?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyControl wire shorted to B+
- PossibleOpen 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
- P0D14Battery Charging System Negative Contactor A Control Circuit High
- P2D68Battery Charging System Negative Contactor C Control Circuit High
- P2D76Battery Charging System Negative Contactor D Control Circuit High
- 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
- P2BD2Exhaust Aftertreatment System A Leak
- P2BD3Exhaust Aftertreatment System B Leak
- P2BD4Motor Electronics Coolant Pump C Control Circuit/Open
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.