With Consult-II

WARNING: This page is about a different car, the 2006 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

Turn ignition switch OFF, and wait at least 10 seconds, and then turn ON.
Select "EGR SYSTEM P1402" of "EGR SYSTEM" in "DTC WORK SUPPORT" mode with CONSULT-II.
Touch "START".
Start engine and let it idle until "TESTING" on CONSULT-II screen is turned to "COMPLETED". (It will take 80 seconds or more.)

Fig 1: CONSULT-II Display - EGR System P1402
Courtesy of NISSAN MOTOR CO., U.S.A.

If "TESTING" is not displayed after 5 minutes, turn ignition OFF and cool the engine coolant temperature to the range of -10 to 50°C (14 to 122°F). Retry from step 1 .
Make sure that "OK" is displayed after touching "SELF-DIAG RESULTS". If "NG" is displayed, refer to , "DIAGNOSTIC PROCEDURE ".