DoolOK

I removed them since they were needed for the LEDs and replaced them with the standard bulbs, so they aren't in the picture anymore. It was doing all of this with or without the resistors.

Hey gang. First time poster here. Thanks for having this open for people to post...I can't find info on an electrical problem, so I figured, why not.. I own a 2014 GMC Sierra Crew Cab and recently put in LED bulbs with the resistor mod....that worked perfectly..lights all worked, headlights all worked, interior lights worked.. ..until it didnt. What I have now is that my right rear blinker doesnt work, but my right mirror and my right front blinker does. I get the "right rear blinker malfunction" error on my dash. So I pulled the LEDs and resistors thinking it was causing an issue, and then I replaced the bulbs with new ones. Left blinkers all work perfectly fine. I still have that happening. No rear blinker. Also when I hit the brakes, the right rear doesn't light up...but again, the left side all works fine. And then I noticed my interior lights dont work...both manually (via the buttons) or when the door is open. I dont have a switch per say to turn them off and on by my trailer brake controller like some GMC's do...so I know that aint a reason... I can't find any type of relay that would tie the 2 together, and I've checked all the fuses that I think were tied to it and replaced those on a sheer "why not" moment. The other night I also noticed my headlight seems to be flickering more and more...great. I get no check engine lights or stored codes...so that got me nowhere. Am I looking at a bad BCM here? Or could this all be tied to some singular ground issue somewhere? I'm clueless at this point.