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P0520 - Engine Oil Pressure Sensor/Switch Circuit Malfunction

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
What does this mean? What does this mean?
When is the code detected?
The P0520 is detected when the circuit from oil pressure sensor to PCM is malfunction
Possible symptoms
- 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
P0520 CHRYSLER Engine Oil Pressure Sensor/Switch Circuit Malfunction
P0520 DODGE Engine Oil Pressure Sensor/Switch Circuit Malfunction
P0520 JEEP Engine Oil Pressure Sensor/Switch Circuit Malfunction
P0520 MERCEDES-BENZ Engine Oil Pressure Sensor/Switch Circuit Malfunction
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