Nissan Rogue (T33) 2021-Present Service Manual: P0523 Engine Oil Pressure

DTC Description

DTC DETECTION LOGIC

DTC

CONSULT screen terms

(Trouble diagnosis content)
DTC detection condition
P0523 00

Engine oil pressure sensor/switch

(Engine Oil Pressure Sensor/Switch "A" High)
Diagnosis condition
Signal (terminal) Engine oil pressure sensor signal
Threshold Sensor signal voltage below minimum threshold.
Diagnosis delay time 5 seconds

POSSIBLE CAUSE

  • Harness or connectors (EOP sensor circuit is open or shorted.)

  • Increase in engine oil pressure

  • Engine oil condition

  • EOP sensor

FAIL-SAFE

Not applicable

DTC Confirmation Procedure

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.

TEST CONDITION:

Before performing the following procedure, confirm that battery voltage is 11 V or more at idle.

>>

GO TO 2.

PERFORM DTC CONFIRMATION PROCEDURE

  1. Start the engine and let it idle for at least 5 seconds.

  2. Keep the engine speed at 4,000 rpm for at least 5 seconds.

Is DTC detected?

YES>>

Proceed to DTC Diagnosis Procedure.

NO-1>>

To check malfunction symptom before repair: Refer to Intermittent Incident.

NO-2>>

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

CHECK ENGINE OIL PRESSURE

With CONSULT

  1. Turn ignition switch ON.

  2. Select “DATA MONITOR” mode of “ENGINE” using CONSULT.

  3. Start the engine and check that “EOP SENSOR” changes, according to engine speeds.

    Monitor item Condition

    Value

    (Approx.)
    EOP SENSOR
    • Engine oil temperature: 80°C (176°F)

    • Selector lever: P or N position

    • Air conditioner switch: OFF

    • No load

    Engine speed:

    Idle
    1.360 V or more

    Engine speed:

    2,000 rpm
    1.670 V or more

Without CONSULT

Check oil pressure. Refer to Inspection.

Is the inspection result normal?

YES>>

GO TO 2.

NO>>

Check oil passage. Refer to Engine Lubrication System.

CHECK ENGINE OIL PRESSURE SENSOR POWER SUPPLY

  1. Turn ignition switch OFF.

  2. Disconnect engine oil pressure (EOP) sensor sensor harness connector.

  3. Turn ignition switch ON.

  4. Check the voltage between EOP sensor harness connector and ground.

    +

    Voltage

    (Approx.)
    EOP sensor
    Connector Terminal
    F54 3 Ground 5 V

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

GO TO 3.

CHECK ENGINE OIL PRESSURE SENSOR POWER SUPPLY CIRCUIT

  1. Turn ignition switch OFF.

  2. Disconnect ECM harness connector.

  3. Check the continuity between EOP sensor harness connector and ECM harness connector.

    EOP sensor ECM Continuity
    Connector Terminal Connector Terminal
    F54 3 F71 77 Existed
  4. Also check harness for short to ground.

Is the inspection result normal?

YES>>

Perform the trouble diagnosis for power supply circuit.

NO>>

Repair or replace error-detected parts.

CHECK ENGINE OIL PRESSURE SENSOR GROUND CIRCUIT

  1. Turn ignition switch OFF.

  2. Disconnect ECM harness connector.

  3. Check the continuity between EOP sensor harness connector and ECM harness connector.

    EOP sensor ECM Continuity
    Connector Terminal Connector Terminal
    F54 1 F71 103 Existed
  4. Also check harness for short to ground.

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

Repair or replace error-detected parts.

CHECK ENGINE OIL PRESSURE SENSOR INPUT SIGNAL CIRCUIT

  1. Check the continuity between EOP sensor harness connector and ECM harness connector.

    EOP sensor ECM Continuity
    Connector Terminal Connector Terminal
    F54 2 F71 114 Existed
  2. Also check harness for short to ground.

Is the inspection result normal?

YES>>

GO TO 6.

NO>>

Repair or replace error-detected parts.

CHECK ENGINE OIL PRESSURE SENSOR

Refer to Component Inspection.

Is the inspection result normal?

YES>>

Check intermittent incident. Refer to Intermittent Incident.

NO>>

Replace engine oil pressure sensor.

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