With CONSULT-II

Turn ignition switch ON and select "DATA MONITOR" mode with CONSULT-II.
Make sure the following conditions are met.
FUEL LEVEL SE: 0.25 - 1.4V

COOLANT TEMP/S: 0 - 32°C (32 - 90°F)

FUEL T/TMP SE: 0 - 35°C (32 - 95°F)

INT A/TEMP SE: More than 0°C (32°F)

If NG, turn ignition switch OFF and leave the vehicle in a cool place (soak the vehicle) or refilling/draining fuel until the output voltage condition of the "FUEL LEVEL SE" meets within the range above and leave the vehicle for more than 1 hour. Then start from step 1).
Turn ignition switch OFF and wait at least 10 seconds.
Turn ignition switch ON.
Select "EVAP V/S LEAK P0456/P1456" of "EVAPORATIVE SYSTEM" in "DTC WORK SUPPORT" mode with CONSULT-II.
Follow the instruction displayed.

Fig 1: DTC Confirmation Procedure With CONSULT-II (P0456)
Courtesy of NISSAN MOTOR CO., U.S.A.
Make sure that "OK" is displayed.
If "NG" is displayed refer to "DIAGNOSTIC PROCEDURE ".

NOTE:

If the engine speed cannot be maintained within the range displayed on CONSULT-II screen, go to "BASIC INSPECTION ".
Make sure that EVAP hoses are connected to EVAP canister purge volume control solenoid valve properly.