Quite a while back my driver side headlight quit. It was the pigtail problem and I upgraded to the heavier duty replacement, soldered and heat shrink for a fix. Now a couple years later and the light started to sporadically quit......low beam only. Per the schematic the circuit goes thru central junction box then switch then multi function switch then to the fuse block under the hood then finally the headlight. I have power all the way to the fuse but nothing at the headlight plug. I have looked and cannot find the issue. Any ideas? Btw the high beam works fine.