P252A

Engine Oil Quality Sensor Circuit

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine Light Is On
Inaccurate oil quality readings
Reduced engine performance
Untimely oil change reminders

Causes

Open or short circuit in the sensor circuit
Faulty oil quality sensor
Poor contact in the sensor connector
Problems with the engine control unit

How to Fix

Check the integrity of the wiring to the sensor
Inspect the sensor connector for corrosion
Check the functionality of the oil quality sensor
Replace sensor if necessary
Reset the error and check if it returns

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