P0DFDBattery Charger Coolant Control Valve Control Circuit/Open
- Generic OBD-II code · Powertrain
- How the car detects it
- P0DFD flags an open or otherwise faulty drive circuit of the valve that controls coolant flow through the on-board charger. Such a valve lets the thermal system send coolant to the charger during AC charging and bypass it while driving. No manufacturer documents P0DFD publicly. The nearest documented case is the coolant shutoff valve of the battery module in Mercedes S-, E- and C-Class hybrids, whose actuation fault or open circuit the battery management logs as P0CDF00 (LI83.30-P-061224). CARB names thermal management of the battery and of the inverter explicitly, not the charger, so whether the MIL lights is up to the maker. A charger that runs too hot will cut its power, so charging may become slower. Shorts are P0DFE and P0DFF.
- What you may notice
- Charging slower than usual or interrupted
- Charging or service message
- Driving usually unaffected
- Likely causes
- LikelyBroken wire or unplugged connector at the valve
- PossibleOpen coil or motor winding in the valve
- RareFaulty output stage in the controlling module
- Repair
- Medium · Usually a job for a workshop.Typical cost: €60 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.