Won't engine start Kawasaki U-250x

This ski won't start all of the sudden. Gauge show FI and beeping this is warning for something problem of Fuel injection sys.

Plug in PC diagnose and checked, it problem was error of Camshaft sensor but camshaft sensor is fine.

I checked wire harness and I found camshaft sensor lead is short to other lead,,,,,, but at this stage I can't find where is point of short. May be needs remove harness from ski and check leads. Oh my god!!!