OBD-II code · Powertrain (generic, extended)
P2D64 Battery Charging System Negative Contactor C Stuck Open
The negative contactor C of the battery charging system reports a stuck open condition. HV charging path cannot be commanded reliably.
Is it safe to drive with P2D64?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyContactor contacts oxidised
- 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 C, Wiring Harness, Bms
Related codes
- P0D10Battery Charging System Negative Contactor A Stuck Open
- P2BCDBattery Charging System Negative Contactor B Stuck Open
- P2D72Battery Charging System Negative Contactor D Stuck Open
- P2D61Battery Charging System Positive Contactor C Control Circuit High
- P2D62Battery Charging System Negative Contactor C Circuit
- P2D63Battery Charging System Negative Contactor C Stuck Closed
- P2D65Battery Charging System Negative Contactor C Control Circuit/Open
- P2D66Battery Charging System Negative Contactor C Control Circuit Range/Performance
- P2D67Battery Charging System Negative Contactor C Control Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.