Without CONSULT-II

1. Disconnect BCM connector.
2. Apply ground to BCM connector E204 terminal 127 (G/W).
   1. Horn should sound  .

OK or NG 

1. OK: Horn alarm is OK.
2. NG: GO TO 2.

Fig 1: Checking Horn Chirp Function Without CONSULT-II

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