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Home › Nissan-Datsun › 2006 › Sentra SE-R › Repair and Diagnosis › Engine Performance › System › Engine Control System - DTCS P0137 To P0445 (Qr25DE) › DTC P0139 Ho2S2 › DTC Confirmation Procedure › With Consult-II

With Consult-II

  1. Turn ignition switch ON and select "DATA MONITOR" mode with CONSULT-II.
  2. Start engine and warm it up to normal operating temperature.
  3. Turn ignition switch OFF and wait at least 10 seconds.
  4. Start engine and keep the engine speed between 3, 500 and 4, 000 rpm for at lest 1 minute under no load.
  5. Let engine idle for 1 minute.
  6. Make sure that "COOLAN TEMP/S" indicates more than 70°C (158°F).

    If not, warm up engine and go to next step when "COOLAN TEMP/S" indication reaches to 70°C (158°F).

    Fig 1: Consult-II DATA MONITOR Display Screen
    G04080354Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Open engine hood.
  8. Select "HO2S2 (B1) P0139" of "HO2S2" in "DTC WORK SUPPORT" mode with CONSULT-II and follow the instruction of CONSULT-II.
    Fig 2: CONSULT-II Display -- HO2S2 (B1) P0139
    G04191840Courtesy of NISSAN MOTOR CO., U.S.A.
    NOTE: It will take at most 10 minutes until "COMPLETED" is displayed.
  9. Make sure that "OK" is displayed after touching "SELF-DIAG RESULTS".

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

    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. Return to step 1.
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