My horn works so I know the fuse is good. How do

All of those are controlled by or influenced the BCM. You need a good auto electrician with a pro grade scan tool to check the BCM and communication to and from it.

If possible, pull the horn relay, use jumper wire on switch side of relay, right side in diagram. If the horn sounds, it's not the fuse. Sometimes these diagrams don't post, for some reason? good luck

Quit smoking and don't honk.

Ifg you`re a do it yourselfer, that sound electrical, it might be a relay issue, go fiverr and punch in wiring diagrams

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horns only one of to wires takem reroute same route new wires u have a short between the fuse box n the horn befor u put to much money into fuses they can be pricey when u add them all up shop costs n total just re place ur to horn wires

the horn circuit is that theres 12v fed to one side of horn and works when its return is grounded at the horn button,,the feed to thec/liter may also be the feed to the horn,,the horn staying on may be the button return spring has calapsed and the contacts not seperating

first if you smoke and was using the cig. lighter look at the element in the lighter and inside the cig. housing may need replace.will cause fuse short open. next get a volt meter and test fuses for 12 volts.the horn may be on a seperate fuse and you may have bad horns or a relay.again you need to unplug the horns and check for voltage on the horn wire when the horn button is pushed.no voltage then remove steering wheel cover and test for voltage threw the horn switch.

Check the fuse for your cigar lighter/horn. I've seen the fuse blown from the lighter shorting. It will caue the cruie not to work also. I hope this helps. Good luck.

look under dash just under steering column for a panel with fuse box fuse location on it