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-II.
2. Start engine and warm it up to the 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 least 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).
   Fig 1: Consult-II DATA MONITOR Display Screen

   Courtesy of NISSAN MOTOR CO., U.S.A.

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

7. Open engine hood.
8. Select " HO2S2 (B1) P1146" (for DTC P0138) or " HO2S2 (B2) P1166" (for DTC P0158) of " HO2S2" in " DTC WORK SUPPORT" mode with CONSULT-II.
9. Start engine and following the instruction of CONSULT-II.
   Fig 2: CONSULT-II Display - HO2S2 (B1) P1146

   Courtesy of NISSAN MOTOR CO., U.S.A.
   NOTE: It will take at most 10 minutes until " COMPLETED" is displayed.
10. Make sure that " OK" is displayed after touching " SELF-DIAG RESULTS".

    If " NG" is displayed, Refer to "PROCEDURE FOR MALFUNCTION B ".

    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.