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Home >> Infiniti >> 2021 >> QX80 Sensory, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (3 Of 5) >> Engine (ECM) >> DTC P0524: Engine Oil Pressure >> Confirmation Procedure

Confirmation Procedure

CAUTION: If DTC Diagnosis Procedure . is unfinished, be sure to perform Step 3 and 4.
  1. PRECONDITIONING-1 

    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 10 V or more at idle.

    GO TO 2.

  2. PRECONDITIONING-2 

    Is "Diagnosis Procedure" of DTC P0524 finished?

    YES

    GO TO 5.

    NO

    GO TO 3.

  3. CHECK ENGINE OIL LEVEL 

    Check engine oil level. Refer to ENGINE OIL : Inspection .

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    Refer to DTC Diagnosis Procedure .

  4. CHECK ENGINE OIL PRESSURE 

    SYMBOL 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 deg.C (176 deg.F)
      • Selector lever: P or N position
      • Air conditioner switch: OFF
      • No load

      Engine speed: Idle

      1, 450 mV or more

      Engine speed: 2, 000 rpm

      2, 850 mV or more

    SYMBOL Without CONSULT

    Check engine oil level. Refer to ENGINE OIL : Inspection .

    Is the inspection result normal?

    YES

    GO TO 5.

    NO

    Refer to DTC Diagnosis Procedure .

  5. PERFORM DTC CONFIRMATION PROCEDURE 
    1. Start the engine and warm it up to normal operating temperature.
    2. Maintain the following conditions for at least 10 consecutive seconds.

      Selector lever position

      N or P position

      Engine coolant temperature

      70 deg.C (158 deg.F) or more

      Engine speed

      1, 700 rpm or more

      NOTE: With engine speed set around 4, 000 rpm, the phenomenon can be reproduced more easily.
    3. Check DTC.

    Is DTC detected?

    YES

    Refer to DTC Diagnosis Procedure .

    NO

    To check malfunction symptom before repair: Refer to Inspection .

    NO

    Confirmation after repair: INSPECTION END