| Author | Message | ||
     Dmurphy |
Posted this to the knowledge vault as well, but nobody seems to check that to often: 2004 XB12R with Buell factory race ECM and muffler. I realized my horn isn't working any longer. I really don't know how long it has been out as I haven't had to use it in quite some time. When I checked it out I realized the horn itself works and the switch appears to be in order with all internal wiring properly soldered and connected. I then checked the fuse and realized it was OK but for some reason was a 10 amp fuse (manual says it should be 15A). Either way I replaced it with a 15A fuse and still no good. I also realized that my brake lights don't work and per the manual the horn, brake lights and interactive exhaust valve are all connected through the one 15A fuse. Any thougts before I go tearing into all of the nicely taped wiring? Could I have screwed up something a year ago when I switch the stock exhause and ECM for the race versions? Thanks Dale | ||
| Court |
There is a FABULOUS wiring and trouble shooting diagram in the Service Manual. | ||
| Gentleman_jon |
Electrical gremlins are a bore, aren't they? I your case, since all the devices on one circuit do not work, and yet the fuse is intact, is seems to me that the problem might be that there is no ground to that circuit. In the following thread, I explained a system to trouble shoot circuits by putting a test light in a fuse socket to test for intermittent shorts. http://www.badweatherbikers.com/buell/messages/327 77/211173.html?1152707968 In your case, you might use the test light to get a good ground to this circuit by replacing the fuse temporarily with the test lamp, and then tracking down the ground for this circuit and then making sure it has good contact. The test light will not glow until you have a ground, then it will glow very dimly. If it glows brightly, you have a short. Perhaps a previous short circuit caused a ground wire to fail, and when you get good ground, it may short circuit again. The tester would show that. Good luck, and let us know how you figured it out. |
