OBD-II code · Powertrain (generic, extended)
P250D Engine Oil Level Sensor Circuit High
The oil level sensor signal voltage reads above the upper limit, typically a short to reference voltage or an open signal return. Pegged at maximum, the ECM cannot distinguish full from invalid and disables the level monitor.
Is it safe to drive with P250D?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySignal wire shorted to reference voltage
- PossibleOpen signal return
- Less likelyConnector pins corroded - high contact resistance
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2 h
- Emissions test
- Usually unaffected
- Parts involved
- Oil Level Sensor, Sensor Wiring
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.