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Home >> Nissan-Datsun >> 2004 >> Pathfinder LE, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System >> DTC P1146, P1166: Ho2S2 >> DTC Confirmation Procedure >> With Consult-II
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With Consult-II

  1. Start engine and warm it up to the normal operating temperature.
  2. Turn ignition switch OFF and wait at least 10 seconds.
  3. Start engine and keep the engine speed between 3,500 and 4,000 RPM for at least 1 minute under no load.
  4. Let engine idle for 1 minute.
  5. Select "HO2S2 (B1) P1146" or "HO2S2 (B2) P1166" of "HO2S2" in "DTC WORK SUPPORT" mode with CONSULT-II.
  6. Follow the instruction of CONSULT-II.
  7. Make sure that "OK" is displayed after touching "SELF-DIAG RESULTS".
  8. If NG is displayed, Refer to "DIAGNOSTIC PROCEDURE  ".
  9. If "CAN NOT BE DIAGNOSED" is displayed, perform the following.
  1. Turn ignition switch OFF and leave the vehicle in a cool place (soak the vehicle).
  2. Turn ignition switch ON and select "COOLAN TEMP/S" in "DATA MONITOR" mode with CONSULT-II.
  3. Start engine and warm it up while monitoring "COOLAN TEMP/S" indication on CONSULT-II.
  4. When "COOLAN TEMP/S" indication reaches to 70°C (158°F), go to step 3.
    Fig 1: DTC Confirmation Procedure - Display CONSULT-II (3 Of 3)
    G00780951Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 2: Checking Overall Function Of Heated Oxygen Sensor 2 Circuit
    G00780952Courtesy of NISSAN MOTOR CO., U.S.A.