Horn not working....

[neal1980]

Hi,

I cant get my horn to work on the car. I dont have 12v at any of the horn wires (at the horn) when I press the steering wheel. I have checked the fuse and the horn relay and I have power coming out of them. I have also confimed the horn works by wiring up direct to battery for a second.

Maybe I have chopped a wire out somewhere with my mass cutting... But anyone have any idea of the original route of wires. I take it the push button on the steering wheel is an earth that when you press the button makes the earth circuit complete?? Could be easier to re-wire the whole horn circuit at this rate. Im stumped now.

Thanks

Neal

[neal1980]

Ok these are my findings dave...

I wrapped a piece of wire around the relay terminals and put a meter on them and I have 12v at pin 86, 30 and 85. I have nothing on pin 87. If I press the horn button this makes no difference.

Didnt really wanna guess which ones to stab so if you can tell me by pin numbers I will be more confident.

Should I see 12v at the end of the horn wires when the ignition is on?? Because I dont see voltage on any wire... of either horn.

Thanks

Neal

[neal1980]

I will check again, I just wanted simple terms me and electrics dont get on as you can see.

"opposite parallel opposite perpendicular"- That didnt mean a thing to me...lol

I am not using the original fans/otter switch wiring anymore I just cut all that out. Fan control is direct from the megasquirt but does seem odd that since that no horn..

right im off in the garage again...

Thanks Dave

[neal1980]

Dave you are the MAN!... Ive spent most the day on this

When I wired my fans in thought it was odd they would spin then when I press the immobiliser fob they went off. (I was looking for a switched ign in the fuse box).. Anyway unplugged the new fan relay and bingo horn all working.

So what ever wire I tapped in too is certainly not any good. I will source a new Ign feed.