Testing Condition:

• Open engine hood before conducting following procedure. 
• For the best results, perform DTC WORK SUPPORT at a temperature of 0 to 30° C (32 to 86° F). 

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.
   Fig 1: Displaying CONSULT-II HO2S2 P1146 Instruction Screen

   Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 2: Displaying CONSULT-II HO2S2 P1146 MAINTAIN Screen
Courtesy of NISSAN MOTOR CO., U.S.A.
Fig 3: Displaying CONSULT-II HO2S2 P1146 COMPLETED Screen
Courtesy of NISSAN MOTOR CO., U.S.A.
7. 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. Turn ignition switch ON and select COOLANTEMP/S in DATA MONITOR mode with CONSULT-II.
3. Start engine and warm it up while monitoring COOLANTEMP/S indication on CONSULT-II.
4. When COOLANTEMP/S indication reaches to 70° C (158° F), go to step 3.