This is important to fix since I can't pass inspection without a horn, my horn stopped working a while ago, I know its not the horn since I bypassed the relays to test it, where is a good place to test, I know of 2 relays, 1 in the BEC, and the other mounted above the radiator. Also, when pushing the horn button, a one time click would be heard from the relay in the BEC.

 

I am having a similiar issue, I blew my horn at a buddy going by and all of a sudden the sound changed like there were 2 horns and now only one is working. if anyone can help either or both of us out that would be great.

 

No idea really, but when you go for inspection just tell them that when the horn doesn't work you just use your middle finger.