I can not print the diagram large enough to see. Is this for a KAF620-A2 Mule 2510 4X4?
I need a spefic answer to this problem or this is of no help. If black white is power, why would it have been run directly to a frame ground. This is the way that it is wired and it has been working for years?
I had to give up and take it to the shop. I checked what you said and it kept blowing fuses. I guess that it was too complicated to assist on line.