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Old 09-13-2017, 11:28 AM
jsc22 jsc22 is offline
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Join Date: Mar 2017
Posts: 2
Exclamation 85 Horn Wiring

This Ranger was a farm truck for a while and a lot of stuff has been cut out under the hood. Mostly the emissions control stuff. But, the horn is gone and I can't locate the wires for it. I've searched all around the web and forums and can't locate anything about which wires coming from the firewall harness are supposed to go to the horn(s).

Does anyone have a diagram or can tell me which wires to use for the horn? I've tried testing a tone of different ones but when the horn is pressed at the steering wheel nothing comes through the voltmeter.
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Old 09-14-2017, 07:22 AM
tomw0 tomw0 is offline
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Join Date: Aug 2015
Posts: 877
Default Re: 85 Horn Wiring

Without speed control, the power goes from the steering wheel switch on a DB wire to the single horn, or to both L and R horns. Oh, same with cruise control as I look at the diagram, except there is a horn relay in the circuit.
Both are fed from fuse 16, Y/LBD (yellow wire, light blue dash?).
The relay is near the steering column, mounted to the dash.
The connector to the relay has the DB and Y/LBD wires and a Y/LG-H(which leads to the speed control switch on the steering wheel)
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horn, wiring

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