I'll throw one more pita fix I had to find. My dual dig msd total loss was doing the same thing. Irradic spark and bad led light. After much meter work verifying grounds and power and shifty relay. Moving wires one at at time and checking for spark. With a bad led this is time consuming. Getting rid of every butt connector and soldering all connections. What I find is a completely broken ground just outside the gromet on the brain. The wire insulation looked perfect but felt weak when moving it. Turns out the power wire only had about half wires not broken. Not empressed with the cheap hard wire used in those wires. The enhancer wires are twice as bendable and fine.