my key buzzer stopped working, the buzzer may not work if the horn does not work as the two are the same relay.
FIX:
remove the steering wheel, the clip and the pieces to get to the turn signal switch
remove the plastic signal switch to get to the key switch
TEST the buzzer by jumping out the two terminals on the bottom of the signal switch assembly. if it buzzes, then it's either bad contacts or the switch itself may be faulty or in need of cleaning or adjustment. if bad it's an easy replacement.
carefully pry up on the two copper connectors on the key buzzer switch and be sure they contact the base of the cam.
Works for me
Now you can enjoy the annoying key in the ignition buzzer!!