Intermittent Horn with Ignition Off

[RockBit]

Originally Posted by strictlypersonl

I've never seen a relay go flaky this way, so I'd suspect the horn switch/button (Lucas!) on the dash. Disconnect both the #11 wires from the switch and see whether the condition stops. Also, follow the pink wire from the switch to make sure that it's not being pinched somewhere.

Thanks Bob. I’ll check it out and report my findings.

[Ron61]

If the sound is so low it may be doing it when you are driving and you just can't hear it. That sounds as if it is getting a low voltage feed from somewhere. If the switch is good then check the hot lead to your horn and look for some place it may be touching a wire that is hot all the time just enough to let some voltage through. A relay sticking would normally let the full voltage through but that is another easy thing to check so don't ignore it.

Ron