Question about 2003 Harley Davidson FLSTC Heritage Classic

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Started to blow accessories fuse two nights ago. Takes out speedo, brake lights, turn signals and horn. Have eliminated the speedo as the problem. This morning it happened when I turned ign. But was fine five minutes before. Any ideas where to continue looking? Will unplug rear lights and try that. Would like to find short without dealership involvement or at least centralize it so my whole ride isn't taken apart. Thanks, Rick.

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  • Master
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You really need a schematic to determine what equipment is on the circuit protected by this fuse. I do not have schematics for the late model machines, only a few earlier models. Some of the equipment supplied by this fuse are connected by sub-harnesses with plugs on them. If you unplug a sub-harness and the fuse stops blowing, then you know it's something on that leg of the circuit. You may have to take the tanks and the seat off to access the plugs.

Good Luck
Steve

Posted on May 20, 2011

  • Finnhollow40 Mar 19, 2012

    My 99 ultra is doing the same thing when I hit the brakes tracked all the wires and they seem good shop is thinking its the electric signal box under the seat 250 dollars we will let ya know how it turns out

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