This could be a horn issue but the way to check the entire system is to go to the horn and check for 12 volts on the single wire when the horn is being pressed.
https://www.2carpros.com/articles/how-to-check-wiring
If there is no voltage there, then you have a wiring issue or the TIPM has failed.
Both the horn and TIPM are common failures on this. However, to confirm this we need to monitor the cluster data with a scan tool and find out if it is picking up the button being pressed.
If this is then the button and the clock spring is okay.
Please see the wiring diagram for more information on this testing.
Let us know what questions you have. Thanks
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Tuesday, October 5th, 2021 AT 5:22 PM