No brake lights, turn signals, speedodemotor, horn they all quit working on my way to work today.

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Hi Joel, start by checking "ALL" your relays for continuity, 1998 and later Sportster models circuit breaker and fuses were located in an electrical bracket behind the starter relay and data link that was mounted behind the left side panel. 1997 and earlier circuit breakers only no fuses were located under the seat and for a free wiring diagram please visit the website below and good luck.
Harley Davidson Wiring Diagrams and Schematics
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