With CONSULT-II

See "BRAKE SW" in "DATA MONITOR" mode.

1. When brake pedal is depressed or A/T selector lever is in "N" or "P" range: BRAKE SW OFF 
2. When brake pedal is released and A/T selector lever is not in "N" or "P" range: BRAKE SW ON 

Fig 1: Displaying "BRAKE SW" in "DATA MONITOR" Mode

Courtesy of NISSAN MOTOR CO., U.S.A.