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Home >> Infiniti >> 2019 >> QX50 Essential, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (2 Of 12) >> DTC/Circuit Diagnosis >> DTC P0101: MAF Sensor >> DTC Description >> DTC Confirmation Procedure
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DTC Confirmation Procedure

  1. CHECK DTC PRIORITY 

    If DTC P0101 is displayed with other DTC, first perform the trouble diagnosis for other DTC.

    Is applicable DTC detected?

    YES

    Perform diagnosis of applicable. Refer to DTC Index .

    NO

    GO TO 2.

  2. 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 3.

  3. PERFORM DTC CONFIRMATION PROCEDURE 
    1. Start the engine and warm it up to normal operating temperature.
    2. Drive the vehicle for at least 5 seconds under the following conditions:
      CAUTION: Always drive at a safe speed.

      Selector lever

      Suitable position

      Vehicle speed

      40 km/h (25 MPH) or more

      NOTE:
      • The gear must be fixed while driving the vehicle.
      • Keep the accelerator pedal as steady as possible during cruising.
    3. 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