I have a 2013 softail slim, I put custom dynamics amber LED turn signal inserts in the front, red inserts for turn/brake/stop in the rear. I installed the can bus adapter and everything flashes at the normal rate. However if I put the four ways on the rear lights alternate when they blink, and if I press the brake pedal or squeeze the brake lever, the right rear light goes out all together. If I remove the LED in the right rear taillight and put a regular incandescent bulb in the right rear everything works as it should. Flashers work as they should, turn signals work as they should, and brake light functions as it should.