LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Qr25DE >> DTC P1274: A/F Sensor 1 >> Diagnostic Trouble Code (DTC) Confirmation Procedure >> Testing Condition: >> With Consult-II
April 5, 2026: LEMON Manuals is launched! Read the announcement.

With Consult-II

  1. Start engine and warm it up to normal operating temperature.
  2. Select "A/F SEN1 (B1) P1274" of "A/F SEN1" in "DTC WORK SUPPORT" mode.
  3. Touch "START".
  4. Maintain the following conditions continuously until "TESTING" changes to "COMPLETED". (It will take approximately 400 to 800 seconds.)
    NOTE: Keep the accelerator pedal as steady as possible.
    Fig 1: Specifications Table
    G00778739Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 2: Displaying OUT OF CONDITION With Consult-II Screen
    G00778740Courtesy of NISSAN MOTOR CO., U.S.A.

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

    Fig 3: Displaying TESTING With Consult-II Screen
    G00778741Courtesy of NISSAN MOTOR CO., U.S.A.
  5. Make sure that "OK" is displayed after touching "SELF-DIAG RESULTS".

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

    Fig 4: Displaying COMPLETED With Consult-II Screen
    G00778742Courtesy of NISSAN MOTOR CO., U.S.A.