P0D85Battery Charging Output Voltage Too High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Needs a drive cycle to confirm a fix
- How the car detects it
- P0D85 means the charger is putting more voltage onto the traction battery side than it should. In Ford's 2019 plug-in hybrid OBD summary the battery controller compares the charger's output voltage with its own request and flags a surplus of 20.82 V lasting 20 seconds. Mitsubishi's 2022 Outlander PHEV judges a change of output voltage of more than 450 V while the PHEV-ECU allows charging, stops the charge and points to the charger/DC-DC unit after checking the high-voltage fuse and the P/N lines; the 2023 list lights the hybrid warning and the MIL. Porsche reuses P0D8500 on 911 (992) petrol models for a battery voltage judged too high at cold start, fixed by DME software (TI 203/23). Related: P0D20, P0D21 and the sensor code P0D4F.
- What you may notice
- Charging stops
- Hybrid system warning and check engine light
- Likely causes
- LikelyVoltage control fault inside the on-board charger/DC-DC unit
- PossibleOpen high-voltage fuse or P/N line between charger and battery (output unloaded)
- RareControl unit software error (e.g. Porsche DME, reprogramming)
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €100 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.