Daniel Kleich

Hey I have a 08 GMC sierra 1500 Denali and I’m having problems with the driver side tail light not working properly I turn on my left blinker and it blinks three times normal than starts to hyperflash , and they are not LED’s. The running lights work but the blinker, the brake light, and reverse light do not turn on at all, I have checked fuses and relays replaced the bulbs, replaced the left tail light harness and replaced the tail light junction block and nothing seems to be working