This same thing is happening to me! one of my bulbs was out so I took out the entire corner lens harness and replaced the bulb. I put it back in and the light kept switching from on to off, and it blinked extremely fast. I think my wires down there are loose because if I jiggle it the light will stay on. Still though when I put on the blinker it blinks so fast. I had this problem before and I took it in to Acura and they said the electrical system down there was screwed up and they claimed they fixed it. Now it is doing it again. I wish I could just fix the problem myself but I suck! Hope you can find a fix for yours.