2006 Chevy Express Horn Problem

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My info says the horn switch is molded into the airbag module. You can't service the horn switch separately. You would have to replace the air bag module, if the horn switch is the problem? Air-bags can be dangerous, safety is your responsibility.
The wire going to horn switch is a ground for horn relay, it might be possible to use external horn button to sound the horn. That probably isn't very professional. Be careful with air bag.

reset your security system

try replacing the battery, and having the alternator checked

I just had the same problem the horn would blow for 30 seconds every 3 minutes. The dealership just told me I need a new horn pad and that it was not covered under the "bumper to bumper" warranty. He also said it would be $460 and be at least 4 days.

Find horn on the front near the grille or inner fender, unplug wire and run a jumper to it from the hot post on the battery. If it blows the horn is fine, but you have horn button problems. If it doesn't blow, you need a new horn.

the plastic cover on the airgag is distorted, you will need to replace the airbag module

Don't see how one would blow the fuse an not the other . The remote function is controlled by the BCM - body control module or vehicle interface . Regardless ,the module an the switch on the steering wheel both energize the horn relay ! Do you know what a relay is an how it works ?
Check the horn relay

VEHICLE RELAYS Operation Diagnosis

i need diagram for fuse box 1998 chevy van