2003 F-250 Wiring Diagram
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2003 F-250 Wiring Diagram
Does anyone know of a "free" wiring diagram for a 2003 Ford F-250 Super Duty pick-up?
I am running an Air-Horn set-up and want to play with hooking it into the factory horn actuator (on the steering wheel).
The intent is to have a toggle that allows me to cycle from the factory horn to the Air Horns.
Also, where's the preferred place to tap into for a hot wire that is tied into the ignition (only on when the key is in)?
Any help will be appreciated.
Here's a pic of the set-up thus far... still have a few things to do on it.
I am running an Air-Horn set-up and want to play with hooking it into the factory horn actuator (on the steering wheel).
The intent is to have a toggle that allows me to cycle from the factory horn to the Air Horns.
Also, where's the preferred place to tap into for a hot wire that is tied into the ignition (only on when the key is in)?
Any help will be appreciated.
Here's a pic of the set-up thus far... still have a few things to do on it.
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Originally Posted by Velocity Motors
IGNITION wire is a DARK BLUE/LIGHT GREEN at the ignition harness and the HORN wire is DARK BLUE (-) trigger wire at the steering wheel harness.
Still would like to have a diagram.
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Last edited by Cecil; 03-11-2007 at 08:24 PM.
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The factory horn wire is (-) and when the Train Horn was tied into this wire, the current would take the path of least resistance and NOT blow the Train Horn, but would only blow the factory horns.
I ended up NOT tapping into this wire and running the train horn of the factory steering wheel actuator.
What we did was run a nitrous switch to the dash (courtesy of Chris Murphy at Ultimate Performance Cycles)... it looks "pimp".
I have a leak in one of the connections of the tank and it is forcing the compressor to run more continuously than it should.
Gonna work on the this weekend.
However, the horns are loud and the installation looks top-notch.
I ended up NOT tapping into this wire and running the train horn of the factory steering wheel actuator.
What we did was run a nitrous switch to the dash (courtesy of Chris Murphy at Ultimate Performance Cycles)... it looks "pimp".
I have a leak in one of the connections of the tank and it is forcing the compressor to run more continuously than it should.
Gonna work on the this weekend.
However, the horns are loud and the installation looks top-notch.
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looks good, windex helps me find all of my leaks, i would also consider putting a toggle switch on the compressor its self so you would not have to be concerned of the compressor running all night/day if u get a leak or you valve malfunctions. _ mike
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I expect that when I fix those, more will make themselves evident.... the weakest link concept.
As for the toggle. I step ahead of ya.
I ran the compressor power so that it can only recieve power when the key is in the ignition.
I will take a few more pics this weekend... after I redo the tank fittings.
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It's loud.... especially if you are behind the truck
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search ebay, you can usually find a pirated copy of a FSM CD for $10
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