It is going to be one of four things. Defective horn button(rare), blown fuse, defective horn, or wiring problem.
you have to get anew speedometer,speedy bo peep.
the horn on my '97 Nissan 200sx doesn't work. how do I fix it?
you will have to replace.
Check the fuse first. It will save you the $12 of buying a horn at the junk yard and actually fix the problem. :)
Replace
You can fix black smoking on a 1995 Nissan Altima GXE 2.4L by replacing its catalytic converter.
steering wheel diagram for 1993 silverado horn
Is there a speed senor for my 1992 nissan 2.4L, wheel drive truck?
The relay may be bad. Replace it and if that doesn' fix it, the wire comming from the horn button is grounded somewhere.
An easy fix is just pull the horn fuse
* Remove the front bumper fascia * Unplug the horn electrical connector and remove the bracket bolt
sounds like a faulty horn switch. take it to a shop the switch is located in front of the air bag