Problems with horn circuit

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Leo779

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Good day all. I have a 2018 tahoe ppv. I know about the wire between the seats needing to be splice together in order for the horn to work. My diagnostic tool shows both an open and a short to ground on the horn secondary circuit. I have been trying to find the problem for many days now and can not seem to resolve it. Any suggestions or any help ?
 

Samuraj

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You have this codes ?
Man …. I’m trying not to lose my mind …. Can not figure out to …
2019 Tahoe
 

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