Tithonus Horn

uc4me

uc4me

Well-known member
Ok, so i'm little embarrassed here to ask but my Horn doesn't work. Every time i put a 20A fuse in it blows immediately. The 20A fuse also controls a few other things and the icons from what i can tell are for the interior light, 'M' light (map?) and F lamp (flash?) and aux. And yes, my hi-beam flash, little map light inside on dash doesn't work either.

Question: There are two wires available with female ends and only one is attached to the horn. Is the other wire for an additional horn or is it a ground wire ?

Thanks in advance!
 
Jrose609

Jrose609

Well-known member
uc4me said:
Ok, so i'm little embarrassed here to ask but my Horn doesn't work. Every time i put a 20A fuse in it blows immediately. The 20A fuse also controls a few other things and the icons from what i can tell are for the interior light, 'M' light (map?) and F lamp (flash?) and aux. And yes, my hi-beam flash, little map light inside on dash doesn't work either.

Question: There are two wires available with female ends and only one is attached to the horn. Is the other wire for an additional horn or is it a ground wire ?

Thanks in advance!
Click to expand...
the wire going to the horn should be a purple/black
 
chris snell

chris snell

Administrator
Callsign: NW5W
Staff member
I have this same problem on my horn. I don't know what's the deal with the loose wire. I assume it's ground because the horn sounds like a half-dead donkey and it's probably getting its ground through the frame. I need to get out the Powerprobe and test it. I feel like a terminal tab might have broken off the horn but I don't see anything obvious.

I should probably just buy a new Hella horn and wire it up.
 
uc4me

uc4me

Well-known member
Thanks guys. I'll think i'll go with new horns either way (although i feel the fuse problem may be elsewhere, either in another switch off that fuse or somewhere in line.

Regardless i think I'll put those Hella Yellow Sharp Tones in. A little deeper than the Red ones from what i read and anythings better than a half-dead donkey! I read they pull a lot more wattage and therefore i should hook directly to battery and use a larger gauge wire.

http://tinyurl.com/kjo4lbc
 
chris snell

chris snell

Administrator
Callsign: NW5W
Staff member
This is easy to test. Put a (+) multimeter probe on the connected spade connector (after pulling it off the horn) and the (-) on a ground/truck body/frame/etc. Check for 12V when the horn is honked.

You can do the same thing at the fuse.
 
nas90tdi

nas90tdi

Well-known member
I don't know what it is because I am lazy, but the extra wire at the horn location is common on the MOD trucks, I have found a few mentions of it on line. I initially though the same ,that a tab had broken off my horn, but it doesn't appear the be the case.
 
chris snell

chris snell

Administrator
Callsign: NW5W
Staff member
There's no doubt that the PIAA is loud, but it sounds very much like an American car horn for me. I wonder what the modern Jaguars use...
 
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