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Old 07-11-2011, 03:39 PM   #1
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Horn fuse is open, Horn doesn't work

The horn on my 2002 Workhorse P32 (Safari Trek) dosen't work. The 20 amp fuse blows as soon as I depress the horn button. The Workhorse Service Manual (page 8-339) says to "Locate and repair the source overload in CKT 40 (ORN) and replace the fuse." What does this mean in layman's terms? Thanks,
Jim
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Old 07-11-2011, 04:49 PM   #2
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Look at the schematic. You should see a wire or set of wires that is labeled CKT 40 and probably orange in color. Find the wire, follow it to the place that has no insulation and is shorted to ground.
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Old 07-11-2011, 07:09 PM   #3
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Have you tried unplugging the horn and see if fuse blows when you push button?
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Old 07-12-2011, 06:45 AM   #4
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Following the wire from the horn will likely lead you to a relay. Unplug that and try another fuse. If it blows you know the problem is in the wiring from the relay to the horn contacts in the steering column. If it doesn't blow, the problem could be the relay itself, the wiring from there to horn, or the horn itself.
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