A real puzzle
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4th Gear
Joined: Jun 2011
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From: Killen
A real puzzle
I changed out a simple OEM horn on my 04 ultra. The puzzle is that I have obviously blew a fuse or relay? I have no digital speedometer, no turn signals, no radio audio( radio turns on and changes channels). All headlights work. I have no found the problem after tearing it down. Any suggestions?
Tourer
Joined: Apr 2008
Posts: 455
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From: Deep River ON
Assuming your wiring is the same as my 2003, there does appear to be a fuse that may affect things as you mention although I would suspect that you should also have lost your rear brake and high beam. Specifically it is the accy switch which is a 15 amp one. According to my book it is identified as P on the output side and R on the input side although I am not sure what theat physically means. Again, if the 2003 is the same it appears to be on the bottom row of the left hand fuse box in the centre. Hope this helps
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4th Gear
Joined: Jun 2011
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From: Killen
Thnx. I checked the fuse, pulled and viewed it. It test as good. I haven't check my rear brake because I haven't had it on the road. I will check my high beam. I never thought these "symptoms" could all be from the same little 15 amp fuse. Hope I find it soon. Gotta a 9 day road trip planned.
Tourer
Joined: Apr 2008
Posts: 455
Likes: 1
From: Deep River ON
I suppose it could be the security system but I would have thought hat it would not fire up if that was the case. A dumb thought but it might be worth disconnecting the battery completely then reconnecting. It might just re-set the "something" that is causing the problems. By the way, does the horn work?
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4th Gear
Joined: Jun 2011
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From: Killen
Nope. The wiring has no connectivity. Ohm meter shows it to be dead lead. I disconnected the positive terminal but left the negative alone. I guess I will give it a try(both terminals)
This has me scratching my head.
This has me scratching my head.
Tourer
Joined: Apr 2008
Posts: 455
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From: Deep River ON
According to the manual the horn is polarity insensitive with one side going directly to ground. The book says disconnect the yellow/black wire at the horn, connect the positive lead of a voltmeter to the wiring harness (presumably the yellow/black) and the negative side of the voltmeter to ground. Turn ignition switch on and press horn switch. You should see battery voltage. if not horn switch or wiring is faulty - back to that fuse
The diagram does show that the same power feed for the horn on the left handlebar goes to the high low beam switch so if that doesn't work it is back to the fuse again, which is what the other symptoms suggest. If the high low works then co-incidentally you may have screwed the horn switch (What is the draw on the new horn?) . Most interesting - I can say that because it is not happening to me.
The diagram does show that the same power feed for the horn on the left handlebar goes to the high low beam switch so if that doesn't work it is back to the fuse again, which is what the other symptoms suggest. If the high low works then co-incidentally you may have screwed the horn switch (What is the draw on the new horn?) . Most interesting - I can say that because it is not happening to me.
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Tourer
Joined: Apr 2008
Posts: 455
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From: Deep River ON
Just re-read the diagram, the O/W wire from the fuse appears to go to the cruise control resume, the brake switch and the rt turn signal on the rt hand controls. So if the rt turn signal works that would confirm that power is getting through from the acc fuse circuit. you have got be intrigued.
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Road Master
Joined: Aug 2008
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From: Virginia
Thnx. I checked the fuse, pulled and viewed it. It test as good. I haven't check my rear brake because I haven't had it on the road. I will check my high beam. I never thought these "symptoms" could all be from the same little 15 amp fuse. Hope I find it soon. Gotta a 9 day road trip planned.
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4th Gear
Joined: Jun 2011
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From: Killen
Y'all got some great imput. Just got home from work and fixing to go back to work(in the garage). I ain't no good at but it sure is enjoyable and challenging. Thanks again. I'll y'all know how it goes. 1st comes the easiest. Change all the fuses. 2nd comes........ Well I don't know yet!