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P0520 - Engine Oil Pressure Sensor/Switch Circuit Malfunction

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Possible causes
- Low oil level or motor mechanical fault
- Faulty Oil Pressure Sensor
- Oil Pressure Sensor harness is open or shorted
- Oil Pressure Sensor circuit poor electrical connection
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When is the code detected?
The P0520 is detected when the circuit from oil pressure sensor to PCM is malfunction
- Engine Light ON (or Service Engine Soon Warning Light)
- Oil pressure warning light ON.
P0520 Description
The PCM continuously monitors the engine oil pressure. The Oil Pressure Sensor/Switch sends a signal to the PCM when the engine is running.
P0520 Information for specific makes
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