Hi SCHMIDTYS: Have a similiar problem with my 2006 HD Streetbob FXDBI. I have the manual security system with my bike, meaning I have to activate/deactivate my alarm system from my key fob manually or bypass. I had no problems until now. My buddies notice a few weeks ago that my left turn signal would flash twice then stop each time I wanted to turn. My right side was working properly and running/brake lights were fine. I rode it for a while working my left blinker by turning it on after it stopped blinking until my turn was done. That worked for a while, then they noticed my rear right turn signal and tail light woiuld work intermitantley, like a short. It would come on, then fade out, but the rear left would work, wasn't long from there, the lamp fuse snapped. I done a visual check for ground wire shorts, scraped wires, nothing visible. Put another fuse in, the battery fuse snapped immediately. I tried to check for a code on my mileage counter screen and nothing. It won't go into the diagnosting mode to give me anything. The speed odometer doesn't even leave 0 to 120 and back. I then tested to see if my alarm lights would flash when setting the security system with the bike off. When holding the fob button down to set the alarm, the battery fuse blew immeditately, you could hear it snap. Can the security module and/or turn signal module cause this to occur? the only accessories on the bike is my Power Commander Tuner & a brake light module for my rear turn signals for brake lights. I did by pass the brake light module to see if their was a short. Didn't make a difference. Any experience or suggestions would be greatly appreciated?