With CONSULT-II

Start engine and warm it up to normal operating temperature.
Turn ignition switch OFF and wait at least 10 seconds.
Turn ignition switch ON.
Select "PURG VOL CN/V P1444" of "EVAPORATIVE SYSTEM" in "DTC WORK SUPPORT" mode with CONSULT-II.

Fig 1: Scan Tool Display - DTC Work Support
Courtesy of NISSAN MOTOR CO., U.S.A.
Touch "START".
Start engine and let it idle until "TESTING" on CONSULT-II changes to "COMPLETED". (It will take approximately 10 seconds.)
If "TESTING" is not displayed after 5 minutes, retry from step 2.
Make sure that "OK" is displayed after touching "SELF-DIAG RESULTS". If "NG" is displayed, refer to DIAGNOSTIC PROCEDURE .