OBD-II code · Powertrain (generic, extended)
P2DA0 High Voltage System Voltage Performance
The high-voltage system voltage does not match plausibility checks under load. Voltage trace deviates from expected battery profile.
Is it safe to drive with P2DA0?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyHV battery cells aged
- PossibleBMS regulation outside calibration
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 3–16 h
- Emissions test
- Usually unaffected
- Parts involved
- Hv Battery, Bms, Hv Bus
Related codes
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.