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Home >> Nissan-Datsun >> 2008 >> Altima Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Engine Control System (Hybrid)) >> Component Diagnosis >> P0420 Three Way Catalyst Function >> DTC Logic >> DTC Confirmation Procedure
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DTC Confirmation Procedure

WARNING: This page is about a different variant/trim than selected.
  1. PRECONDITIONING

    If DTC Confirmation Procedure has been previously conducted, always perform the following 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 2.

  2. PERFORM DTC CONFIRMATION PROCEDURE
    CAUTION: Always drive vehicle in safe manner according to traffic conditions and obey all traffic laws.

    With CONSULT-III 

    1. Activate "INSPECTION MODE 1 " to start engine, and warm up engine to normal operating temperature.
    2. Turn ignition switch OFF and wait at least 10 seconds.
    3. Turn ignition switch ON.
    4. Turn ignition switch OFF and wait at least 10 seconds.
    5. Turn ignition switch ON (READY).
    6. Repeat following procedure 2 times.
      • Drive vehicle at a speed of 80 km/h (50 MPH) or more for at least 3 consecutive minutes.
        NOTE: Keep the vehicle speed as steady as possible during the cruising.
      • Stop vehicle.
        NOTE: Never turn ignition switch OFF.
    7. Select "DTC & SRT CONFIRMATION" then "SRT WORK SUPPORT" mode with CONSULT-III.
    8. Drive vehicle at a speed of 80 km/h (50 MPH) or more until "INCMP" of "CATALYST" changes to "CMPLT".
      NOTE:
      • Keep the vehicle speed as steady as possible during the cruising.
      • It will take at most 3 minutes until "INCMP" of "CATALYST" changes to "CMPLT".
    9. Check 1st trip DTC.

    With GST 

    1. Activate "INSPECTION MODE 1 " to start engine, and warm up engine to normal operating temperature.
    2. Turn ignition switch OFF and wait at least 10 seconds.
    3. Turn ignition switch ON.
    4. Turn ignition switch OFF and wait at least 10 seconds.
    5. Turn ignition switch ON (READY).
    6. Repeat following procedure 3 times.
      • Drive vehicle at a speed of 80 km/h (50 MPH) or more for at least 3 consecutive minutes.
        NOTE: Keep the vehicle speed as steady as possible during the cruising.
      • Stop vehicle.
        NOTE: Never turn ignition switch OFF.
    7. Check 1st trip DTC.

    Is 1st tip DTC detected? 

    YES : Go to "DIAGNOSIS PROCEDURE ".

    NO : INSPECTION END

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