OBD-II code · Powertrain (generic, extended)
P2DFC Hybrid/EV Battery Coolant Leak Detected
The hybrid control module detects a coolant leak in the HV battery thermal loop. Coolant level dropping or leak sensor triggered.
Is it safe to drive with P2DFC?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyCoolant fitting loose or cracked
- PossibleCoolant hose split
- Less likelyPack cell imbalance approaching service threshold
Symptoms
- EV/hybrid system warning light on
- Reduced power output or limp mode
- Charging may fail or be slowed
- Reduced electric range
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–6 h
- Emissions test
- Usually unaffected
- Parts involved
- Hybrid Battery Coolant Loop, Hybrid Battery Coolant Level Sensor
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.