2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE

With CONSULT-II

WARNING: This page is about a different car, the 2004 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
  1. Turn ignition switch OFF, and wait at least 10 seconds, and then turn ON.
  2. Select "EGR SYSTEM P1402" of "EGR SYSTEM" in "DTC WORK SUPPORT" mode with CONSULT-II.
  3. Touch "START".
  4. Start engine and let it idle until "TESTING" on CONSULT-II screen is turned to "COMPLETED". (It will take 80 seconds or more.)
    Fig 1: Identifying CONSULT-II Screens
    G00775839Courtesy of NISSAN MOTOR CO., U.S.A.

    If "TESTING" is not displayed after 5 minutes, turn ignition OFF and cool the engine coolant temperature to the range of -10 to 50Β°C (14 to 122Β°F). Retry from step 1.Β 

  5. Make sure that "OK" is displayed after touching "SELF-DIAG RESULTS". If "NG" is displayed, refer toDIAGNOSTIC PROCEDUREΒ  .
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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