My 2013 RX 350 horn works occasionally. If i pull the fuse a put it back in if will function for a while. I believe it is the clock spring that is faulty. Any advise

 

It's likely the clock spring or a bad wire. See this: https://www.clublexus.com/forums/rx-...r-a-while.html

Or a bad relay: https://www.clublexus.com/forums/rx-...-location.html

I found this using the search feature. These are aging vehicles and almost any issue has already been discussed. The search feature box on the right side of the main page works very well. I used the term horn. You should try another search using clockspring and maybe look at YouTube on how to replace it if you are a do it yourself person, but beware of the airbag.