So I have a 86 k5 and all of a sudden the blinkers,horn,4 way and flasher are not working. I have checked the the fuse panel for power on both sides of the fuse, I have check the brake swith and there is power there, I have check that there is power to one side of the flasher wirring. I beleive that there must be a single problem related to these issue as the signal,flasher and brake light I think all work off the dual element bulb. However I do have running lights,head lights and interrior lights working. I beleive the running lights are useing one element of the bulb that operates the brakes and turnsignals. any ideas?