VDC Off Switch
WARNING: This page is about a different car, the 2005 Nissan Frontier. However, it is still accessible from the selected car via links, so may be relevant.
Check the continuity between terminals 1 and 2.
1 - 2: Continuity should exist when pushing the switch.
Continuity should not exist when releasing the switch.
Courtesy of NISSAN MOTOR CO., U.S.A.