OK, so my son and I hooked up my plow. The P500 started, warmed up, and ran as normal. When I pulled it out of the garage and dropped the winch down on the driveway to double check that everything was set up correctly, and turned it off, the dash lights stayed on the check engine light is flashing and it will now not turn over. I have my battery tender on now.
Any ideas?
Any ideas?