You can't you have to replace it.
Check your car for a bad or blown horn rlay.
I need a new horn on my 95 town car my want blow loud
You can find a diagram of a 1977 Corvette horn assembly at your local library. Look in the car repair section for a Corvette repair book.
The horn is located on the front passenger side of the car. if you remove the front passenger headlight you will be able to see it from there
Defective horn switch in the steering wheel or short in wiring. If the car has an air bag, do not attempt to repair the steering wheel horn switch. Take it to a professional. Serious injury can occur when working with the SRS.
When you are pressing the key/valve only halfway, and you get a muffled, and incorrect note.
get a chiltons repair manual at the library for your car.
repair horn
You can visit a local auto parts shop or a repair shop. First, read the manual to understand the specific horn pad for your car.
I invented the car horn
Go to a parts house and purchase a Haynes Repair manual for your car. It will have the wiring diagram in it.
A horn wiring diagram of a 2001 Dodge Durango can be found in a service repair manuals. The service repair manual will also show step by step how to properly remove the horn.