Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer thinks the sensor that checks how good the engine oil is, is getting too much power. It's like the sensor is shouting too loudly.
The P252D code indicates that the engine oil quality sensor circuit is receiving a higher voltage than expected.
The engine oil quality sensor is responsible for monitoring the condition of the engine oil. It sends a signal to the engine control module (ECM) about the oil's quality. If the sensor circuit voltage is higher than the manufacturer's specifications, the ECM triggers the P252D code.
• Check Engine Light is on
• Possible engine performance issues
• Unusual oil consumption
• Faulty engine oil quality sensor
• Wiring issues such as short to power
• Faulty ECM
ECM: Engine Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the oil quality sensor.
• Test the sensor voltage and compare it to the specifications.
• Replace the engine oil quality sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$100 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regular oil changes
• Routine maintenance checks
• Inspect wiring regularly
Sensor Issue
• Do not ignore the Check Engine Light.
• Get the vehicle inspected by a professional.
• Avoid driving long distances until fixed.
Check with the vehicle manufacturer for warranty coverage on sensors.
This code has been more common in vehicles with high mileage or poor maintenance records.
Moderate – It should be addressed soon to avoid potential engine damage.
Driving with a faulty oil quality sensor may lead to engine damage and is not recommended.
• Engine at operating temperature
• Vehicle parked on a level surface
The engine oil quality sensor is usually located near the oil pan or oil filter housing.
Q: Can I drive with a P252D code?
A: It's not recommended to drive for long distances as it may lead to engine damage.
Q: How do I reset the P252D code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is fixed, it should not return.
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