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Home >> Nissan-Datsun >> 2004 >> Altima Base, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control System - 2.5L >> DTC P1273: A/F Sensor 1 >> DTC Confirmation Procedure >> With Consult-II
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With Consult-II

  1. Start engine and warm it up to normal operating temperature.
  2. Turn ignition switch OFF and wait at least 10 seconds.
  3. Turn ignition switch ON and select "SELF-LEARNING CONT" in "WORK SUPPORT" mode with CON-SULT-II.
  4. Clear the self-learning coefficient by touching "CLEAR".
  5. Turn ignition switch OFF and wait at least 10 seconds.
  6. Start engine and keep the engine speed between 3, 500 and 4, 000 RPM for 1 minute under no load.
  7. Let engine idle for 1 minute.
  8. Keep engine speed between 2, 500 and 3, 000 RPM for 20 minutes.
  9. If 1st trip DTC is detected, go to "DIAGNOSTIC PROCEDURE ".
    Fig 1: Display CONSULT II (Work Support)
    G02884725Courtesy of NISSAN MOTOR CO., U.S.A.