OBD-II code · Powertrain (generic)
P0DAA Battery Charging System Isolation Fault
The BMS detects an isolation fault in the battery charging system. HV insulation between charging path and chassis is degraded.
Is it safe to drive with P0DAA?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyCharging cable insulation chafed
- PossibleMoisture in charging connector
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–10 h
- Emissions test
- Usually unaffected
- Parts involved
- Battery Charger, Hv Charging Cable, Isolation Monitor
Related codes
- P0DA7Drive Motor B Inverter Voltage Sensor A Circuit Intermittent/Erratic
- P0DA8Hybrid/EV Battery Voltage/Drive Motor A Inverter Voltage Correlation
- P0DA9Hybrid/EV Battery Voltage/Drive Motor B Inverter Voltage Correlation
- P0DABHybrid/EV Battery Cell Balancing Performance
- P0DACHybrid/EV Battery Cell Balancing Circuit A
- P0DADHybrid/EV Battery Cell Balancing Circuit A Stuck On
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.