Not a train horn, but just an inexpensive air horn that I bought from a rival(?) site, just because it fit the price range, annnd well, it stopped working after two tries. This is the horn http://trainhorns.net/Hot-Rod-Deluxe/Black-Hawk-Electric-Horn/675205/
And this is the diagram I made showing how I hooked it up.
If it matters im putting this in a 93 Toyota Corolla.
When it got hooked up, it worked for two presses, and then stopped. I didnt notice any smoke, but I thought I heard some sort of hissing, but I couldnt be sure I did. I plugged in the OEM horn, and then that didn’t work either. I opened up the fuse box and saw none of the blade fuses broken, I also took out the horn relay, but I’ve no idea if that was blown or not, it’s a coil of wire and I’ve no idea what I’d look for.
Everything else seems to be working fine still, and I haven’t gotten a chance to unhook the battery for a brief time to see if that resets anything, or take a volt meter to it to see if there is anything at the end of the horn connection.
Do you all have any recommendations? Is it possible that horn relay/coil blew? I noticed that the horn relay (there’s no horn fuse, correct? Or is it shared with something?) is a 20A(?) and I’m using 30A inline and the relay is 12v/30a rated (it was provided with the horn) could that be something? Am I using a wrong inline fuse?
But when plugging in the OEM horn, and it not working… that means something went poof… which isn’t good. Again, when checking through all the fuses that I know of, I see none broken, am I missing something? Any clue what it could be?
I thought at first I blew up the compressor, or the provided relay, so I swapped in the OEM horn, but then that didnt work, so I figure the compressor and relay are still fine, and something in the original wiring blew. But what? Im pretty sure I checked all the fuses, and not sure what else there is to it. Button > Fusebox > Horn ? Is there something else that could have blown?