P0CFEControl Pilot Charging Switch A Stuck On
- Generic OBD-II code · Powertrain
- How the car detects it
- Stuck On describes a charging switch A that stays closed while the module wants it open, so the pilot keeps signalling a charge request. Mercedes-Benz documents P0CFE00 in the AC charger N83, whose fault text states that the charger’s internal charge-start switch does not open. A 2023 bulletin for models 206, 223 and 243 reports it after charging has finished or at the start of a timed-charging pause, only with pre-entry climate control active, together with a charging error message in the cluster; NHTSA's index lists the same bulletin for many Mercedes plug-in and electric models up to 2026. The cause there is software, cured by SCN coding, and the bulletin advises against replacing parts. Its counterpart is P0CFD, circuit faults are P0CF8 to P0CFB. Charging may not end properly or is aborted.
- What you may notice
- Charging error message in the instrument cluster after charging
- Charging aborts at home socket, wallbox or public station
- Fault appears mainly with pre-entry climate control active (Mercedes-Benz)
- Likely causes
- LikelyOn-board charger software, cured by SCN coding (Mercedes-Benz N83)
- RareCharging switch or relay contacts sticking closed
- RareControl line fault holding the switch permanently on
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €80 – €300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.