Nissan Versa (N17): P0520 EOP sensor

DTC Logic

DTC DETECTION LOGIC

NOTE: If DTC P0520 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to EC, "DTC Logic".

DTC No.	Trouble diagnosis (Trouble diagnosis content)	Detecting condition	Possible cause
P0520	EOP SENSOR/SWITCH [Engine oil pressure sensor circuit]	ECM detects the following status continuously for 5 seconds or more: A voltage signal transmitted from the engine oil pressure sensor is lower than 0.3 V. A voltage signal transmitted from the engine oil pressure sensor is higher than 5.02 V.	Harness or connectors (Engine oil pressure sensor circuit is open or shorted.) Engine oil pressure sensor

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.

>> GO TO 2.

2.CHECK ENGINE OIL LEVEL

Check engine oil level. Refer to LU, "Inspection".

Is inspection result normal?

YES >> GO TO 3.

NO >> Check engine oil leak. Refer to LU, "Inspection".

3.PERFORM DTC CONFIRMATION PROCEDURE

1. Start engine and let it idle for at least 5 seconds.
2. Check 1st trip DTC.

Is 1st trip DTC detected?

YES >> Proceed to EC, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK ENGINE OIL PRESSURE SENSOR POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.
2. Disconnect engine oil pressure sensor harness connector.
3. Turn ignition switch ON.
4. Check the voltage between engine oil pressure sensor harness connector terminals.

Is inspection result normal?

YES >> GO TO 2

NO >> Repair or replace error-detected parts.

2.CHECK ENGINE OIL PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

    1.   Check the continuity between engine oil pressure sensor harness connector and ECM harness connector.

    2.   Also check harness for short to ground and short to power.

Is inspection result normal?

YES >> GO TO 3.

NO >> Repair or replace error-detected parts.

3.CHECK ENGINE OIL PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

    1.   Check the continuity between engine oil pressure sensor harness connector and ECM harness connector.

    2.   Also check harness for short to ground and short to power.

Is inspection result normal?

YES >> GO TO 4.

NO >> Repair or replace error-detected parts.

4.CHECK ENGINE OIL PRESSURE SENSOR

Refer to EC, "Component Inspection".

Is inspection result normal?

YES >> Check intermittent incident. Refer to GI, "Intermittent Incident".

NO >> Replace engine oil pressure sensor. Refer to EM, "Exploded View".

Component Inspection

1.CHECK ENGINE OIL PRESSURE SENSOR

1. Turn ignition switch OFF.
2. Disconnect engine oil pressure sensor harness connector.
3. Check resistance between engine oil pressure sensor connector terminals.

Is the inspection result normal?

YES >> INSPECTION END.

NO >> Replace engine oil pressure sensor. Refer to EM, "Exploded View".