P0D28Battery Charger Input Voltage Too High
- Generic OBD-II code · Powertrain
- How the car detects it
- P0D28 is the mirror case of P0D27: the AC voltage at the charger input lies above the range the charger can accept. Mitsubishi evaluates both on the Outlander PHEV while the PHEV-ECU allows charging; the charger then stops and the technician works from the outside in, beginning with the supply and the charging cable, then the wiring between inlet and charger, and only last the charger. A real overvoltage is rare on public grids, so a faulty voltage measurement or software is often more likely. Audi lists P0D2800, battery charger primary voltage too high, among ghost DTCs stored by software 0088 in the high-voltage charger module of the e-tron and Q8 e-tron (2021-2024); bulletin 2062631 says to leave them unrepaired unless a charging complaint exists. Sensor faults are P0D3E-P0D40.
- What you may notice
- AC charging stops or does not start
- Code found in memory without any complaint
- Likely causes
- PossibleInput voltage sensing inside the charger reading too high
- PossibleCharger software storing the code without a real fault (Audi ghost DTC)
- RareActual overvoltage or unstable supply at the charging location
- RareFaulty charging cable or EVSE
- Repair
- Medium · 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.