I was just quoted $675 for the safety controller at the dealer. Can't find one online yet. I refuse to pay that kind of money for a china made component that has $10 worth of components inside!
I have the exact same problem with my TC309 2006 model. Suspect controller. Bypassed seat switch, still same issue. Tested transmission safety switches, all good. I would really like to bypass this damn thing and keep things simple. I have the shop manual schematic so trying to figure out...