P0D85 code meaning
Battery Charging Output Voltage Too High
Powertrain system Generic code P0Dxx codes Check engine light
What P0D85 means
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) gasoline 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.
P0D85 at a glance
- Check engine lightYes, usually on
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyWorkshop only
- Typical labor0.5 to 4 hours
- Clears after repairAfter a drive cycle
Symptoms of P0D85
- Charging stops
- Hybrid system warning and check engine light
Common causes of P0D85
- Most 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)
- Less likelyControl unit software error (e.g. Porsche DME, reprogramming)
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
On board chargerHv battery
What each part of P0D85 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 85 | The exact fault in that area. |
What to do next
- Note P0D85 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0D85
What does P0D85 mean?
P0D85 means "Battery Charging Output Voltage Too High". P0D85 means the charger is putting more voltage onto the traction battery side than it should. It is a generic code, so it means the same on every make.
Is it safe to drive with P0D85?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P0D85 fail an emissions test?
P0D85 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is P0D85 to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 4 hours of work. This is a job for a workshop.
Will P0D85 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.