Car power/start troubles

I also had trouble getting my duster to start because I forgot to plug in the connector.......but I believe I still had power to everything else....just no start.
This is why I mentioned the SNS being grounded.Rumble has power and the car will start and run in ON position.I,m betting it,s the NSS.Sorry Rumble,instead of SNS I meant NSS..Neutral Saftey Switch...OOPS!