2012 sportsmen 500 dead

I have a problem with my 2012 sportsmen 500 with 900km. I started noticing a problem when I would start it in gear with the override with the brake on the handle bar. With the key on I would press the brake, then the dash would go out and wouldn’t start, I would turn the key off and then back on again and it would start. Then when I was driving it, I used the brake again and it died, dash went out wouldn’t start, now it won’t start at all no matter what I do. All I have done is Check the fuses at the front and they are good. Going to start Checking all power and grounds to the module. I was just wondering if anyone knew where I can get a schematic and if anyone has seen this problem before. I don’t abuse my atv and it’s always kept in a garage.