I have already searched through the postings about my particular problem but nothing really identical to mine so here it is: 2010 FXDC....hit the right turn signal this morning on the way to work and it flashes 4 times normal then starts flashing very fast. It does this every time. The left signals and 4 way flashers operate fine. Got to work and looked at the lights and my right directional is not working.....bulb looks perfect....not blown as far as I can tell. So is the fast flash a code that my bulb is out or that there is some other problem?