Engine Oil Level Sensor Circuit High

Where it lives

For P250D, the sensor sits on the circuit this code reports. The description of P250D reports a fault at the sensor.

Check these first

• Signal wire shorted to power in the oil level sensor circuit
• Failed oil level sensor pulling the signal high
• Water intrusion in the oil level sensor connector
• Incorrect oil level sensor fitted

What to do next

1. Read the oil level sensor signal voltage on a scan tool
2. Check the oil level sensor signal wire for a short to power
3. Inspect the connector for water or corrosion
4. Verify the correct oil level sensor is installed
5. Replace the oil level sensor if it holds the signal high
6. Clear the code and retest

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