D'oh, stupid horn
Thread Starter
Race Director
Joined: Mar 2001
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From: San Francisco CA
St. Jude Donor '07
D'oh, stupid horn
I was working on connecting an aftermarket horn when I accidently bumped out the wire/connectors on the original. Looks like there was originally a connector, but someone bubba'ed it and cut it off and spliced the wires. So there's a green and a black, green=hot,black=ground, but i'm not sure which goes where. If you stare directly into where the connector would go, it has a mushroom shape. Does anyone know which wire goes where?
Burning Brakes
Joined: Oct 2001
Posts: 1,185
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From: New Wilmington PA
Re: D'oh, stupid horn (Buffalo Dude)
The wireing diagram shows the green wire being the only one connected to the horn.
On my car (which might be bubbafyed) I have a green wire running to one horn mounted high and another green wire coming out of that connection and running down to a horn mounted low.
Hope that helps.
On my car (which might be bubbafyed) I have a green wire running to one horn mounted high and another green wire coming out of that connection and running down to a horn mounted low.
Hope that helps.
Thread Starter
Race Director
Joined: Mar 2001
Posts: 11,601
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From: San Francisco CA
St. Jude Donor '07
Re: D'oh, stupid horn (Buffalo Dude)
Thanks guys.
Looks like mine was thoroughly bubba'd and is "one of a kind." :cry
I don't want to hook it up right away, cause the last time i did it i had it backwards and there was smoke and heat and melted relays, not good. :eek:
So can i just hook it up to something like a AA battery to find out which way to go and which wire is +/-? AAs are 1.5V as opposed to 12V car battery.
Looks like mine was thoroughly bubba'd and is "one of a kind." :cry
I don't want to hook it up right away, cause the last time i did it i had it backwards and there was smoke and heat and melted relays, not good. :eek:
So can i just hook it up to something like a AA battery to find out which way to go and which wire is +/-? AAs are 1.5V as opposed to 12V car battery.
Burning Brakes
Joined: Oct 2001
Posts: 1,185
Likes: 0
From: New Wilmington PA
Re: D'oh, stupid horn (Buffalo Dude)
A AA battery probably won't be able to supply enough power to blow the horn but you might be able to make it tick with one. Horns take a lot of current though, the AA would probably get hot very quickly.
The horn you're installing, how many connectors does it have?
I'm pretty sure that the stock setup for a '75 only has one wire coming from the horn relay and connects the horns in parallel. The surface the horn mounts to should serve as a ground. My first horn does have two wires running into a connector but that second wire just runs to the second horn. But like I said, could be bubba.
Good luck!
The horn you're installing, how many connectors does it have?
I'm pretty sure that the stock setup for a '75 only has one wire coming from the horn relay and connects the horns in parallel. The surface the horn mounts to should serve as a ground. My first horn does have two wires running into a connector but that second wire just runs to the second horn. But like I said, could be bubba.
Good luck!
Thread Starter
Race Director
Joined: Mar 2001
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From: San Francisco CA
St. Jude Donor '07
Re: D'oh, stupid horn (Cookwithvette)
a definite bubba job here, horns are in parrelel(sp?) but harness doesn't look stock. Black ground wires are grounded to mounts, but i don't think there's supposed to be wires at all. Green wire splits into two, one for each horn.
Actually, come to think of it, i don't think either of the horns are stock. On the wires in the front end, there's some overspray from when it was repainted, but none on either horns or mounting brackets.
The first horn has two metal connectors(male) that the connectors on the wires plug into. Second horn just has wires coming out of it. Both horns work, but first is disconnected because my clumsiness bumped the wires out of the horn.
What kind of battery can i use to figure out polarity on first horn? I tried the "plug wires in and see" last time and I got smoke and a melted horn relay.
[Modified by Buffalo Dude, 9:13 PM 3/10/2002]
Actually, come to think of it, i don't think either of the horns are stock. On the wires in the front end, there's some overspray from when it was repainted, but none on either horns or mounting brackets.
The first horn has two metal connectors(male) that the connectors on the wires plug into. Second horn just has wires coming out of it. Both horns work, but first is disconnected because my clumsiness bumped the wires out of the horn.
What kind of battery can i use to figure out polarity on first horn? I tried the "plug wires in and see" last time and I got smoke and a melted horn relay.
[Modified by Buffalo Dude, 9:13 PM 3/10/2002]
Burning Brakes
Joined: Oct 2001
Posts: 1,185
Likes: 0
From: New Wilmington PA
Re: D'oh, stupid horn (Buffalo Dude)
Two connectors on the horn, hmmm. That is what was confusing me.
A nine volt or lantern battery would probably work assuming you're only tapping the connection for a second or two. The horn's mounting bracket should serve as its ground. If one connector on the horn is also grounded I can see how the relay got fried. :eek: Best bet would be to hook the negative side of the battery to the horn mount and tap the connectors on the horn hoping one of them will make the horn do something. The one that makes noise is the positive, the one that does nothing (or possibly just makes a little spark) will be the grounded connector. You could try just using the connectors on the horn but I *think* the horn will work even with + - reversed.
Also note, you can use a multimeter to test the horn in place of a battery by measureing resistance. By attaching the negative probe to the mount and touch the positive to each of the connectors you should get a different reading on each one. The connector that shows little to no resistance is the ground and the connector that shows very high resistance (or possibly reads as open) is the positive connector.
Good luck. :cheers:
I hope I've been of some help.
A nine volt or lantern battery would probably work assuming you're only tapping the connection for a second or two. The horn's mounting bracket should serve as its ground. If one connector on the horn is also grounded I can see how the relay got fried. :eek: Best bet would be to hook the negative side of the battery to the horn mount and tap the connectors on the horn hoping one of them will make the horn do something. The one that makes noise is the positive, the one that does nothing (or possibly just makes a little spark) will be the grounded connector. You could try just using the connectors on the horn but I *think* the horn will work even with + - reversed.
Also note, you can use a multimeter to test the horn in place of a battery by measureing resistance. By attaching the negative probe to the mount and touch the positive to each of the connectors you should get a different reading on each one. The connector that shows little to no resistance is the ground and the connector that shows very high resistance (or possibly reads as open) is the positive connector.
Good luck. :cheers:
I hope I've been of some help.
Racer
Joined: Oct 2000
Posts: 429
Likes: 0
From: Oak Harbor WA
Re: D'oh, stupid horn (Buffalo Dude)
Speaking of horns, mine sounds like a very ill moose in heat... I want to replace it, how do tell if it's the low note or high note (choices available in MAD) horn?
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