Engine Oil Level Sensor Circuit Range/Performance

Where it lives

For P250B, the part to look at first is the sensor named here.

Check these first

• Oil level sensor reading drifting out of the valid range
• Low oil level confusing the sensor logic
• Intermittent wiring fault in the oil level sensor circuit

What to do next

1. Compare the oil level sensor reading with the dipstick
2. Check the oil level sensor connector for looseness or corrosion
3. Wiggle-test the oil level sensor harness on live data
4. Recheck oil level and top up if low
5. Replace the oil level sensor if the reading is irrational
6. Clear the code and retest

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