If you know the fuse and relay have power, you should be able to jumper the relay and make the horn blow. The horn pad on the steering wheel usually grounds the relay. If you can jumper the relay and make the horn blow, the problem may be the horn pad or the clockspring in the steering column.
SOURCE: horn does not work
check B+ in the horn pin and check the ground on the horn if there is B+ and B- just change the horn if there is no B+ on the horn conector replace the relay .
B+ = battrey power
B- = battrey ground
SOURCE: horn doesnt work but fuses and relay are good
In most cases this problem is caused by the rotating ribbon circuit contact under the steering wheel having a broken filament, the part is known as a clock spring contact, u will need to properly disarm the airbag and remove the steering wheel to access the part. WARNING: Failure to follow factory Airbag disarming protocol can result in an unexpected Airbag deployment and possible serious personnel injury or death.
SOURCE: 1999 Chevy Lumina horn is not working. Horn is
Simply have it replaced, horns on domestics usally stop working as mine did on my 93 lumina, it stopped working and I had it replace and it worked fine after that.
SOURCE: horn does not work. relay and fuse good, need wiring diagram
Had the same problem myself i just replaced the horn itself.
SOURCE: horn does not sound
horn is under the hood. usually right against the grill or mounted on fender well. fuses for horn can be under the dash, or in fuse panel under the hood.
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