P250CEngine Oil Level Sensor Circuit Low
- Generic OBD-II code · Powertrain
- How the car detects it
- P250C means the oil level sensor's signal line is pulled too low, the classic picture of a short to ground or, depending on the input design, a break that lets the line drop. Deutz describes its P250C-00 the same way: level sensor line grounded or interrupted. Hyundai shows that software can trip it too: on 2023 Kona and Elantra with the 2.0 L Nu Atkinson engine, P250C turned on a warning lamp, and the cure was a PCM reflash that changes how the oil level warning is triggered. Ford also lists P250C for the 2014 BOSS 302S engine module. The opposite fault is P250D, dropouts are P250E. A low level of oil itself is P250F. For the driver the oil level information is lost.
- What you may notice
- Oil level warning lamp on
- No oil level reading in the cluster
- Likely causes
- LikelySignal wire shorted to ground near the sump
- PossibleOpen circuit or unplugged sensor connector
- PossibleWarning logic in the engine module, fixed by reflash (Hyundai 2.0 Nu)
- RareSensor electronics shorted internally
- Repair
- Medium · Often possible to do yourself.Typical cost: €0 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.