i have a 2012 2500, the drivers side blinker is not working. The dash indicator goes normal for a second and then blinks fast, the normal running lights work so i dont think its a bad wire or bulb, it also keeps blowing that 15 amp fuse, i believe it is fuse 6 but not 100% on that. is there a flasher i can test/replace or is it computer controlled. any and all help is appreciated.

 

that means open circuit. Usually a burned out bulb.

it's a dual filament bulb, isn't it? separate circuits.

Should only take a minute to swap left & right to test.