With CONSULT-II

Turn ignition switch ON.
Select "DATA MONITOR" mode with CONSULT-II.

Fig 1: Scan Tool Display - Data Monitor
Courtesy of NISSAN MOTOR CO., U.S.A.
Wait at least 6 seconds.
If DTC is detected, go to 7 under "DIAGNOSTIC PROCEDURE".
If DTC is not detected, go to next step.
Start engine and let it idle for at least 6 seconds.
If DTC is detected, go to DIAGNOSTIC PROCEDURE .