Nissan Murano: Dtc/circuit Diagnosis / P0520 Eop Sensor
DTC DETECTION LOGIC
-
A voltage signal transmitted from the engine oil pressure sensor is lower than 0.26 V.
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A voltage signal transmitted from the engine oil pressure sensor is higher than 4.9 V.
| DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition | ||
| P0520 |
EOP SENSOR/SWITCH (Engine oil pressure sensor/switch circuit) |
1 | Diagnosis condition | Start engine and let it idle |
| Signal (terminal) | Voltage signal transmitted from engine oil pressure sensor to ECM | |||
| Threshold | A voltage signal transmitted from the engine oil pressure sensor is lower than 0.26 V | |||
| Diagnosis delay time | 5 seconds or more | |||
| 2 | Diagnosis condition | Start engine and let it idle | ||
| Signal (terminal) | Voltage signal transmitted from engine oil pressure sensor to ECM | |||
| Threshold | A voltage signal transmitted from the engine oil pressure sensor is higher than 4.9 V | |||
| Diagnosis delay time | 5 seconds or more | |||
POSSIBLE CAUSE
-
Harness or connectors
(EOP sensor circuit is open or shorted)
(APP sensor 2 circuit is shorted.)
[CMP sensor (PAHSE) circuit is open or shorted.]
(Refrigerant pressure sensor is shorted.)
-
Engine oil temperature (EOP) sensor
-
Accelerator pedal position sensor
(APP sensor 2)
-
Camshaft position (CMP) sensor (PHESE)
-
Refrigerant pressure sensor
FAIL-SAFE
Not applicable
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
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Turn ignition switch OFF and wait at least 10 seconds.
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Turn ignition switch ON.
-
Turn ignition switch OFF and wait at least 10 seconds.
>>
GO TO 2.
CHECK ENGINE OIL LEVEL
-
Turn ignition switch OFF.
-
Check engine oil level. Refer to Inspection.
Is inspection result normal?
YES>>GO TO 3.
NO>>Check engine oil leak. Refer to Inspection.
PERFORM DTC CONFIRMATION PROCEDURE
-
Start engine and let it idle for at least 5 seconds.
-
Check 1st trip DTC.
Is 1st trip DTC detected?
YES>>Proceed to Diagnosis Procedure.
NO>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO>>Confirmation after repair: INSPECTION END
CHECK EOP SENSOR POWER SUPPLY-I
-
Turn ignition switch OFF.
-
Disconnect EOP sensor harness connector.
-
Turn ignition switch ON.
-
Check the voltage between EOP sensor harness connector terminals.
EOP sensor Voltage
(Approx.)Connector + − terminal F87 3 1 5 V
Is the inspection result normal?
YES>>GO TO 2.
NO>>GO TO 4.
CHECK EOP SENSOR SIGNAL CIRCUIT
-
Turn ignition switch OFF.
-
Disconnect ECM harness connectors.
-
Check the continuity between EOP sensor harness connector and ECM harness connector.
EOP sensor ECM Continuity Connector Terminal Connector Terminal F87 2 F78 14 Existed -
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES>>GO TO 3.
NO>>Repair or replace error-detected parts.
CHECK EOP SENSOR
Check EOP sensor. Refer to Component Inspection.
Is the inspection result normal?
YES>>INSPECTION END
NO>>Repair or replace error-detected parts.
CHECK EOP SENSOR POWER SUPPLY-II
Check the voltage between EOP sensor harness connector terminal and ground.
| + | − |
Voltage (Approx.) | |
|---|---|---|---|
| EOP sensor | |||
| Connector | Terminal | ||
| F87 | 3 | Ground | 5 V |
Is the inspection result normal?
YES>>GO TO 6.
NO>>GO TO 5.
CHECK EOP SENSOR POWER SUPPLY CIRCUIT
-
Turn ignition switch OFF.
-
Disconnect ECM harness connectors.
-
Check the continuity between EOP sensor harness connector and ECM harness connector.
EOP sensor ECM Continuity Connector Terminal Connector Terminal F87 3 F78 18 Existed -
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES>>Check sensor power supply 2 circuit. Refer to Diagnosis Procedure.
NO>>Repair or replace error-detected parts.
CHECK EOP SENSOR GROUND CIRCUIT
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Turn ignition switch OFF.
-
Disconnect ECM harness connector.
-
Check the continuity between EOP sensor harness connector and ECM harness connector.
EOP sensor ECM Continuity Connector Terminal Connector Terminal F87 1 F78 15 Existed
Is the inspection result normal?
YES>>GO TO 7.
NO>>Repair or replace error-detected parts.
CHECK ECM GROUND CIRCUIT
Check the continuity between ECM harness connector and ground.
| ECM | — | Continuity | |
|---|---|---|---|
| Connector | Terminal | ||
| E32 | 147 | Ground | Existed |
| 149 | |||
| 152 | |||
| F78 | 10 | ||
| 55 | |||
| F79 | 105 | ||
| 110 | |||
Is the inspection result normal?
YES>>INSPECTION END
NO>>Repair or replace error-detected parts.
CHECK EOP SENSOR
-
Turn ignition switch OFF.
-
Disconnect EOP sensor harness connector.
-
Check resistance between EOP sensor connector terminals.
EOP sensor Condition Resistance
(kΩ)+ − Terminal 1 2 None 4 – 10 3 2 – 8 2 1 4 – 10 3 1 – 3 3 1 2 – 8 2 1 – 3
Is the inspection result normal?
YES>>INSPECTION END.
NO>>Replace EOP sensor. Refer to Component Parts Location.
P050a Cold Start Control
DTC Description
DESCRIPTIONECM controls ignition timing and engine idle speed when engine is started with pre-warming up condition.This control promotes the activation of three way catalyst by heating the catalyst and reduces emissions...
P0524 Engine Oil Pressure
DTC Description
DTC DETECTION LOGICAn EOP sensor signal voltage applied to ECM remains lower than the specified value continuously for 10 seconds or more when the engine speed is 1,000 rpm or more...
Other information:
Nissan Murano (Z52) 2015-2024 Service Manual: Cvt Control System
System Description SYSTEM DIAGRAMMAIN CONTROL CONTENTS OF TCM Controls Reference Line pressure control System Description Shift control System Description Select control System Description Lock-up control System Description Fail-safe Fail-safe Self-diagnosis function CONSULT Function Communication function with CONSULT CONSULT Function LIST OF CONTROL ITEMS AND INPUT/OUTPUT Control Item Shift control Line pressure control Select control Lock-up control Fail-safe function* Input Engine torque signal (CAN communication) × × × × × Engine speed signal (CAN communication) × × × × × Accelerator pedal position signal (CAN communication) × × × × Closed throttle position signal (CAN communication) × × × Stop lamp switch signal (CAN communication) × × × × Primary pressure sensor × Secondary pressure sensor × × × CVT fluid temperature sensor × × × × × Primary speed sensor × × × × × Output speed sensor × × × × Input speed sensor × × × × × Transmission range switch × × × × × Manual mode switch (CAN communication) × × × Output Line pressure solenoid valve × × × × Primary pressure solenoid valve × × × Torque converter clutch solenoid valve × × Secondary pressure solenoid valve × × × Select solenoid valve × × × Shift position indicator (CAN communication) × *: If these input/output signals show errors, TCM activates the fail-safe function...
Nissan Murano (Z52) 2015-2024 Owners Manual: Rapid air pressure loss
Rapid air pressure loss or a “blow-out” can occur if the tire is punctured or is damaged due to hitting a curb or pothole. Rapid air pressure loss can also be caused by driving on under-inflated tires. Rapid air pressure loss can affect the handling and stability of the vehicle, especially at highway speeds...
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Fuel gauge
The gauge indicates the approximate fuel level in the tank.
The gauge may move slightly during braking, turning, acceleration, or going up or down hills.
The gauge needle returns to 0 (Empty) after the ignition switch is placed in the OFF position.
