OBD-II code · Powertrain (generic)
P0D19 Battery Charging System A High Voltage Interlock Circuit Intermittent/Erratic
The HV interlock circuit of battery charging system A reports a intermittent/erratic condition. Safety interlock chain may be compromised.
Is it safe to drive with P0D19?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyInterlock connector not seated
- PossibleVibration affects contact
- Less likelyConnector with intermittent contact under vibration
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 A Hv Interlock, Wiring Harness, Bms
Related codes
- P2DBBBattery Charging System B High Voltage Interlock Circuit Intermittent/Erratic
- P0D16Battery Charging System A High Voltage Interlock Circuit Performance
- P0D17Battery Charging System A High Voltage Interlock CircuitCircuit Low
- P0D18Battery Charging System A High Voltage Interlock CircuitCircuit High
- P0D1AHybrid/EV Battery Pack Coolant Control Valve B Control Circuit/Open
- P0D1BHybrid/EV Battery Pack Coolant Control Valve B Performance/Stuck Off
- P0D1CHybrid/EV Battery Pack Coolant Control Valve B Stuck On
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.