I would make sure that the ground for the horn switch is in good condition, has no corrosion on it, and the horn switch is making good contact with the ground. I have included a troubleshooting guide, connector end view, location, and wiring diagram for the horn in the diagrams down below. Please go through the information and check the horn switch ground and get back to me with what you find out.
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Thursday, March 21st, 2019 AT 1:36 PM