Hello All,
I've got a 2007 FLHX. I installed a scorpio alarm a few months ago with no problems. Anyway, today after a ride, I noticed that neither turn signal functions, along with the brake light and horn. I only mentioned the alarm, because when I arm the system, both rear turn signals and brake light would flash. Now only the left turn signal flashes when arming the system. Please help me figure this out!!!!!

 

I found the problem!
I couldn’t wait for the special order schematics/service manual that is due next week. I traced the wires the old fashioned way, by DVM (Digital Volt Meter) and found the problem. It was no pinched wires, no blown fuse, but the ignition switch apparently cannot take much of a thump without breaking one of the contact points. Harley has a great color coded wiring scheme and if you have the “no turn signals, no horn, and no brake lights” scenario then check the hot side of the accessory fuse that powers those components. The fuse is in the bottom second to last column as you face the fuse panel. Take a DVM or analog volt meter and see if your hot side – left side of the fuse with a red with blue strip wire feeding it - shows 12V’s with the ignition turned on. If you don’t have power there, you probably have a bad ignition switch. This is on my 2008 Dyna Low Rider.