P0EF0Battery Charger Coupler Unlock Disabled - High Voltage Present
- Generic OBD-II code · Powertrain
- How the car detects it
- P0EF0 describes a safety lockout rather than a broken actuator: the vehicle keeps the charging connector locked because it still measures hazardous voltage at the inlet. CharIN's CCS design guide permits unlocking only below 60 V, and EVgo's interoperability guide for vehicle makers asks for release once current is close to zero, the inlet is under 60 V DC and the station has changed to state B1. If the voltage does not decay, for instance because a DC charging contactor has welded, the station leaves its output live or the vehicle's voltage measurement is wrong, the lock stays engaged and the code is logged. No manufacturer documents P0EF0 publicly. Electrical faults of the lock actuator are P0D91 to P0D98. The driver cannot remove the cable until the voltage is gone.
- What you may notice
- Charging cable cannot be unplugged after charging
- Charging fault message, sometimes only at certain stations
- Emergency release of the connector needed
- Likely causes
- PossibleDC charging contactor stuck closed, inlet stays connected to the battery
- PossibleCharging station does not switch off or discharge its output
- PossibleFaulty inlet voltage measurement reporting voltage that is not there
- RareCharging control software ending the session in the wrong order
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €0 – €2,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.