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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Qr25DE >> DTC P1279: A/F Sensor 1 >> Diagnostic Trouble Code (DTC) Confirmation Procedure >> Testing Condition: >> With Consult-II
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With Consult-II

  1. Perform "IDLE AIR VOLUME LEARNING ". Make sure that "CMPLT" is displayed on CONSULT-II screen. If "INCMP" is displayed, follow the instruction for Idle Air Volume Learning.
  2. Select "A/F SEN1 (B1) P1278/P1279" of "A/F SEN1" in "DTC WORK SUPPORT" mode.
  3. Touch "START".
  4. When the following conditions are met, "TESTING" will be displayed on the CONSULT-II screen.
    Fig 1: Specifications Table
    G00778782Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 2: Displaying OUT OF CONDITION With Consult-II Screen
    G00778783Courtesy of NISSAN MOTOR CO., U.S.A.

    If "TESTING" is not displayed after 20 seconds, retry from step 2.

  5. Following the instructions of CONSULT-II screen, set D position with "OD" OFF and release accelerator pedal fully.
    Fig 3: Displaying TESTING With Consult-II
    G00778784Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Make sure that "TESTING" changes to "COMPLETED".

    If "TESTING" changed to "OUT OF CONDITION", retry from step 6.

  7. Make sure that "OK" is displayed after touching "SELF-DIAG RESULT".

    If "NG" is displayed, go to "DIAGNOSTIC PROCEDURE ".

    Fig 4: Displaying COMPLETED With Consult-II Screen
    G00778785Courtesy of NISSAN MOTOR CO., U.S.A.