Yes! item 21 is what the problem is!
Well, I found it, it's a 6 prong 5 volt adapter that runs between the wiring harness and the volt meter. it's not shown on the wiring schematic, and the Hustler help desk never mentioned it. I called the distributor, and he had one in stock. he said he has had to replace a few of them. (about $48.00) any way, I'm back up and running. thank you for your help.