S14 horn problem need help asap

[kado0420]

So horn started to go off without me pressing the horn. And it's stuck going off so I took off the fuse. Then again the horn relay starts to buzz non stop even when my keys are out.

[rawgarage]

Replace and test...

[Bnr32gtr]

The horn works by grounding it. Sounds like it's a short to ground. I did not kno the horn had a rely. U could swap it with another to see if the rely took a shit

[kado0420]

No I swapped it out with three different ones

[brndck]

sounds like you have a short to ground somewhere. time to bust out the voltmeter and start chasing wires

[kado0420]

Lol sounds super fun....

[kruked]

Check the connection at the back of the steering wheel. I wound start w/ the horn button itself, either way, take off your steering wheel and inspect in that general area.

[firejackal]

I know with my s14 the wire which went to the horn had a short in it from flexing at that connection. So you might check that. On my crx the relay shorted out (got water in it.)
I'm not sure where the relay is on the 240sx, I'm running a separate relay for my aftermarket horns.