Switch Monitor: Description
WARNING: This page is about a different car, the 2003 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.
In this mode, when BCM detects the input signal from a switch in IVMS as shown below, the detection is indicated by the map lamp and step lamps with buzzer.
Courtesy of NISSAN MOTOR CO., U.S.A.