OBD-II code · Powertrain (generic, extended)
P2DB7 Battery Charging System B High Voltage Interlock Circuit/Open
The high-voltage interlock circuit of battery charging system B reports a circuit/open condition. Safety interlock chain may be compromised.
Is it safe to drive with P2DB7?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyInterlock signal interrupted
- PossibleInterlock connector not seated
- Less likelyPin pushed back out of connector body
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–6 h
- Emissions test
- Usually unaffected
- Parts involved
- Bcs B Hv Interlock, Wiring Harness, Bms
Related codes
- P2DB4Drive Motor A Temperature Sensor C Circuit High
- P2DB5Drive Motor A Temperature Sensor C Circuit Intermittent/Erratic
- P2DB6Battery Charger B Cooling System Performance
- P2DB8Battery Charging System B High Voltage Interlock Circuit Performance
- P2DB9Battery Charging System B High Voltage Interlock Circuit Low
- P2DBABattery Charging System B High Voltage Interlock Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.