jkyamaha

I put on a louder horn and replaced with the 2 factory horns. It work for a week and now will not work, I put the factory horns back on and they will not work

I tested the horns right to the battery and they work
Checked the fuse and its good.
IS there a relay somewheere that went bad? Help, what else can i check

Sako

See if you can meter from the fuse to the connector to check for a broken wire.

jkyamaha

Thanks, Did that also, ok What is the purpose of the fuse?

Sako

In case of a short, it protects the circuit from over current.

Cant see a relay being needed, but a wiring diagram would tell for sure.

jkyamaha

Ok, so I put a new louder horn, What if that hoirn drew more Amperage, is it suppose to blow the fuse?
Maybe I had to big of horn on?

Sako

Possible, but the fuse should have blown. If it didnt, it could burn up a wire or the switch contacts, but not sure how much current that would take.

jkyamaha

The fuse says 20 Amp

What is the wires are broken, would a dealer warranty it you think?

Sako

You could try using a test light on thethe switch side of the fuse to ground. When pushing the horn, the test light should be lit up.

Sako

If you still have btb warranty, put the old horns on, and take it in.

jkyamaha

Ok I could try that.. how would i know which is the witch side of the fuse?