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Home › Infiniti › 2005 › G35 x › Repair and Diagnosis › Engine Performance › Engine Control System - Sedan › DTC P1276, P1286: A/F Sensor 1 › DTC Confirmation Procedure › With Consult-II

With Consult-II

  1. Start engine and warm it up to normal operating temperature.
  2. Select "A/F SEN1 (B1)" or "A/F SEN1 (B2)" in "DATA MONITOR" mode with CONSULT-II.
  3. Check "A/F SEN1 (B1)" or "A/F SEN1 (B2)" indication.

    If the indication is constantly approx. 1.5V and does not fluctuates, go to "Diagnostic Procedure ".

    If the indication fluctuates around 1.5V, go to next step.

  4. Select "A/F SEN1 (B1) P1276" or "A/F SEN1 (B2) P1286" of "A/F SEN1" in "DTC WORK SUPPORT" mode with CONSULT-II.
  5. Touch "START".
  6. When the following conditions are met, "TESTING" will be displayed on the CONSULT-II screen.
    IMPORTANT CONDITION

    ENG SPEED 1,100 - 3,200 RPM
    VHCL SPEED SE More than 64 km/h (40 MPH)
    B/FUEL SCHDL 1.0 - 8.0 msec
    Shift lever D position (A/T)
    Shift lever 5th position (M/T)

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

    Fig 1: Identifying A/F SEN1 (B1) P1276 Display In DTC Work Support Mode
    G02348918Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Release accelerator pedal fully.
    NOTE: Never apply brake during releasing the accelerator pedal.
    Fig 2: Identifying Testing Display In DTC Work Support Mode With Testing Message
    G02348919Courtesy of NISSAN MOTOR CO., U.S.A.
  8. Make sure that "TESTING" changes to "COMPLETED".

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

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

    If "NG" is displayed, go to "Diagnostic Procedure ".

    Fig 3: Identifying Completed Display In DTC Work Support Mode
    G02348920Courtesy of NISSAN MOTOR CO., U.S.A.
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