P0EF0
Battery Charger Coupler Unlock Disabled High Voltage Present
Generic OBD-II
Common symptoms
What you'll notice
- Consult vehicle service manual for diagnostic and repair guidance
Common causes
Most likely first
- Faulty battery or low battery charge
- Loose or corroded battery terminals
- Malfunctioning battery charger or charging coupler
- Disabled battery charger coupler unlock due to a safety concerns
Read & clear P0EF0 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.