With CONSULT-II

Turn ignition switch ON.
Start engine and warm it up to normal operating temperature.
If engine cannot be started, go to DIAGNOSTIC PROCEDURE .
Select "DATA MONITOR" mode with CONSULT-II.
Check the voltage of "MAS A/F SE-B1" with "DATA MONITOR".
Increases engine speed to about 4,000 RPM.
Monitor the linear voltage rise in response to engine speed increases.
If NG, go to DIAGNOSTIC PROCEDURE .

If OK, go to following step.
Maintain the following conditions for at least 10 consecutive seconds.

Fig 1: Maintaining Following Conditions For 10 Consecutive Seconds
Courtesy of NISSAN MOTOR CO., U.S.A.
If DTC is detected, go to DIAGNOSTIC PROCEDURE .