OBD-II code · Powertrain (generic, extended)
P2D74 Battery Charging System Negative Contactor D Control Circuit Range/Performance
The negative contactor D of the battery charging system reports a control circuit range/performance condition. HV charging path cannot be commanded reliably.
Is it safe to drive with P2D74?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyCoil resistance drifted
- PossibleHigh-resistance contact in connector
- Less likelySensor element aged beyond calibration window
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 D, Wiring Harness, Bms
Related codes
- P0D12Battery Charging System Negative Contactor A Control Circuit Range/Performance
- P2BCFBattery Charging System Negative Contactor B Control Circuit Range/Performance
- P2D66Battery Charging System Negative Contactor C Control Circuit Range/Performance
- P2D71Battery Charging System Negative Contactor D Stuck Closed
- P2D72Battery Charging System Negative Contactor D Stuck Open
- P2D73Battery Charging System Negative Contactor D Control Circuit/Open
- P2D75Battery Charging System Negative Contactor D Control Circuit Low
- P2D76Battery Charging System Negative Contactor D Control Circuit High
- P2D77Battery Charger Control Module B Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.