My blinkers rarely work. If I turn them on and off several times then they may blink 3-4 times then stop and must be turned off over and over to get them to do anything again. When they don't blink, the indicator light on the inside does not turn on but the side light (that illuminates to the left or right when the blinker and headlights are on) will turn on. The lights themselves all seem to be alright, because if I turn the hazard lights on all lights blink without problems and the indicator lights on the dash blink along with them. But when I want them to indicate a turn they rarely work and only for for a handful of blinks at a time when they do work. What could possibly cause this? Thank you in advance.