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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1176 (Engine Control System - DTCS U0101 To P0175 (VK56DE)) >> DTC P0138, P0158: Ho2S2 >> DTC Confirmation Procedure >> Procedure For Malfunction B

Procedure For Malfunction B

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

With CONSULT

TESTING CONDITION: 

For better results, perform "DTC WORK SUPPORT" at a temperature of 0 to 30°C (32 to 86°F)  .

  1. Turn ignition switch ON and select "DATA MONITOR" mode with CONSULT.
  2. Start engine and warm it up to the normal operating temperature.
  3. Turn ignition switch OFF and wait at least 10 seconds.
  4. Turn ignition switch ON.
  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 at least 1 minute under no load.
  7. Let engine idle for 1 minute.
  8. Check 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 70°C (158°F).

  9. Open engine hood.
  10. Select "HO2S2 (B1) P1146" (for DTC P0138) or "HO2S2 (B2) P1166" (for DTC P0158) of "HO2S2" in "DTC WORK SUPPORT" mode with CONSULT.
  11. Follow the instructions displayed.
    NOTE: It will take at most 10 minutes until "COMPLETED" is displayed.
  12. Check that "OK" is displayed after touching "SELF-DIAG RESULTS".

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

If "CAN NOT BE DIAGNOSED" is displayed, perform the following procedure.

  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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