With CONSULT-II

Turn ignition switch ON.
Start engine and warm it up to normal operating temperature.
Turn ignition switch OFF and wait at least 10 seconds.
Start engine and let it idle for at least 70 seconds.
Select "VC CUT/V BP/V P1491" of "EVAPORATIVE SYSTEM" in "DTC WORK SUPPORT" mode with CONSULT-II.
Touch "START".

Fig 1: Scan Tool Display - DTC Work Support
Courtesy of NISSAN MOTOR CO., U.S.A.
When the following conditions are met, "TESTING" will be displayed on the CONSULT-II screen. Maintain the conditions continuously until "TESTING" changes to "COMPLETED". (It will take at least 30 seconds.)

Fig 2: Inspecting Condition Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Scan Tool Display - Monitor
Courtesy of NISSAN MOTOR CO., U.S.A.

If "TESTING" is not displayed after 5 minutes, retry from step 3.
Make sure that "OK" is displayed after touching "SELF-DIAG RESULTS". If "NG" is displayed, refer to DIAGNOSTIC PROCEDURE .

Fig 4: Scan Tool Display - Self-Diag Results
Courtesy of NISSAN MOTOR CO., U.S.A.