Horn button wire - Which one???
Fleet Owner
Joined: Oct 2005
Posts: 20,789
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From: Kentucky
My EVTM for a 1993 F-series shows the ground path from the steering column to the horn relay coil is a Dark Blue wire. The 12V feed from the horn relay to the factory horns is Yellow/Light Green
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Cargo Master
Joined: Feb 2010
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From: NY
Ok cool, thanks a bunch. I should just look at the harness going directly to the steering column I assume? I would tap into the 12V to wire in a horn right, no reason to mess with the ground, correct?
Fleet Owner
Joined: Oct 2005
Posts: 20,789
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From: Kentucky
The 12V supply for the horn relay is located in the engine compartment fuse/relay box. The horn button in the steering column only supplies the return path to activate the relay.
This drawing might help you out:
This drawing might help you out:
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Cargo Master
Joined: Feb 2010
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From: NY
Ya, I meant to the horn button. Can't I just tap into the horn button wire(Black wire on diagram) and put one end of the toggle in there so when the toggle is down only the stock horn will sound. But when the toggle is up, both will sound?
Fleet Owner
Joined: Oct 2005
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From: Kentucky
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New User
Joined: Apr 2011
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I am having a horn issue alsoon my 1990 F250. I tired using stock button in wheel cutting and bypassing harness wires. It was the wrong thing to try. I appreciate the wiring diagram. I am still unabule to locate horn relay. Any more throughts
Freshman User
Joined: Sep 2008
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From: cleveland
horn relay
horn relay should be under hood on passenger side. In between the battery and the solenoid..
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av8r210
1983 - 2012 Ranger & B-Series
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Apr 18, 2011 09:56 PM
