How I found the electrical issue on my John Deere S240, and a look at all of the safety switches

2016 John Deere S240 Lawn Tractor stopped running at 66.6 hours (I kid you not). Turned out to be an electrical issue with the PTO switch, that required a lot of searching, learning, and testing. Hope this video helps someone out, so they don’t spend a week frustrated and upset over a non-starting John Deere lawn tractor. The video shows all the safety switches as well as the signal wires for the safety switches including the purple signal wire for the solenoid that will prevent it from starting.