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:
|
|
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
>> 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
Is 1st trip DTC detected?
YES >> Proceed to EC, "Diagnosis Procedure".
NO >> INSPECTION END
1.CHECK ENGINE OIL PRESSURE SENSOR POWER SUPPLY CIRCUIT
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".
1.CHECK ENGINE OIL PRESSURE SENSOR
Is the inspection result normal?
YES >> INSPECTION END.
NO >> Replace engine oil pressure sensor. Refer to EM, "Exploded View".
Description ECM controls ignition timing and engine idle speed when engine is started with prewarming up condition. This control promotes the activation of three way catalyst by heating the c ...
Security systems (if so equipped)
Your vehicle has one type of security systems:
NISSAN Vehicle Immobilizer System
NISSAN vehicle immobilizer system
The NISSAN Vehicle Immobilizer System will not
allow the engine to start without the use of a
registered key.
If the engine fails to start using a registered key
(for ex ...
P0734 4GR Incorrect ratio
Description
This malfunction is detected when the A/T does not shift into 4GR position as
instructed by TCM. This is not
only caused by electrical malfunction (circuits open or shorted) but by
mechanical malfunction such as control
valve sticking, improper solenoid valve operation, etc.
DTC ...