OBD-II · Engine and powertrain (P)
P0D27
Battery charger input voltage too low
What it means
The car's on-board charger is seeing too low a voltage from the charging point or cable.
Symptoms
- Charging stops or will not start
- Charging slower than normal
- Charging warning message
Likely causes, most likely first
| No. | Cause |
|---|---|
| 01 | weak household supply or long extension lead with the portable charging cable |
| 02 | faulty charging cable or wallbox |
| 03 | loose or burnt contacts in the charging socket |
| 04 | on-board charger fault |
What to check, step by step
- 01Try a different charging point, ideally a known-good public AC charger
- 02Stop using extension leads; check the socket and portable cable for heat damage
- 03Inspect the car's charging socket pins for burning or dirt
- 04Have the on-board charger tested if charging fails on several good chargers