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Home >> Nissan-Datsun >> 2004 >> Pathfinder LE, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System >> DTC P0420, P0430: Three Way Catalyst >> DTC Confirmation Procedure >> With Consult-II >> Testing Condition:
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Testing Condition:

  1. Start engine and warm it up to the normal operating temperature.
  2. Turn ignition switch OFF and wait at least 10 seconds.
  3. Start engine and keep the engine speed between 3,500 and 4,000 RPM for at least 1 minute under no load.
  4. Let engine idle for 1 minute.
  5. Open engine hood.
  6. Select "DTC & SRT CONFIRMATION" then "SRT WORK SUPPORT" mode with CONSULT-II.
  7. Rev engine up to 2,000 to 3,000 RPM and hold it for 3 consecutive minutes then release the accelerator pedal completely. If "INCMP" of "CATALYST" changed to "COMPLT", go to step 10.
  8. Wait 5 seconds at idle.
  9. Rev engine up to 2,000 to 3,000 RPM and maintain it until "INCMP" of "CATALYST" changes to "CMPLT" (It will take approximately 5 minutes). If not "CMPLT", perform the following.
    1. Turn ignition switch OFF and leave the vehicle in a cool place (soak the vehicle).
    2. Turn ignition switch ON and select "COOLAN TEMP/S" in "DATA MONITOR" mode with CONSULT-II.
    3. Start engine and warm it up while monitoring "COOLAN TEMP/S" indication on CONSULT-II.
    4. When "COOLAN TEMP/S" indication reaches to 70°C (158°F), go to step 3.
  10. Select "SELF-DIAG RESULTS" mode with CONSULT-II.
  11. Confirm that the 1st trip DTC is not detected.

    If the 1st trip DTC is detected, go to "DIAGNOSTIC PROCEDURE  " .