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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 208 (Engine Control System (DTC/Circuit Diagnosis) (CUMMINS 5.0L) (5 Of 6)) >> DTC/Circuit Diagnosis >> DTC P221A-00: NOX Sensor 1/2 Correlation Bank 1 >> DTC Confirmation Procedure

DTC Confirmation Procedure

WARNING: This page is about a different car, the 2018 Nissan Titan XD. However, it is still accessible from the selected car via links, so may be relevant.
  1. PERFORM DTC CONFIRMATION PROCEDURE 

    If DTC CONFIRMATION PROCEDURE has been previously conducted, always perform the following procedure before conducting the next test.

    1. Start engine and let it idle for 20 seconds.
    2. Accelerate lightly and drive at 40 km/h (25 MPH) for 2 minutes.
      CAUTION: Always drive vehicle at safe speed.
    3. Accelerate lightly and drive at 88 km/h (55 MPH) for 4 minutes.
    4. Decelerate using as little braking as possible, return to park, and idle for 40 seconds.
    5. Repeat steps 2 through 4 eleven more times.
    6. Check 1st trip DTC.

    Is P221A-00 DTC detected?

    YES

    Proceed to Diagnosis Procedure .

    NO

    Inspection End.

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