So a Diner pin I picked up only has the right half of the GI working (Green, White-Green wires), the left side dark (Brown, White-Brown). There is a relay in the backbox but I swapped another relay out and that's not it. The B-WB lines has continuity all the way back to the backbox interconnect board (White-Brown) and to the aux power driver board (Brown). I'm not really sure how to test with multimeter to diagnose which board is my issue. I do have continuity on both lines so I know its not a connection issue. Any help would be much appreciated. Thx.