Sportsman 570 EPS Check eng & P/S light, now I get nothing?

I have a 2014 570 with only about 100 miles on it. Yesterday I started it and it wouldn’t stay running at idle, would stall. Ran it a bit and check engine light came on and power steering light blinked a few times. Also was saying OV and charging at 17-18 volts? Ran it in the garage and today I started it and still get light and threw code 168 – 3 for overcharging. Wiggles some wires and everything was tight. Now I get nothing when I turn the key on? Like the battery is completely disconnected? have 12.2v in the battery using multi-meter, what could be my problem?? Any advice would be greatly appreciated, dealer said there are 3 weeks out to look at it