Interlock Safety Switch

Thanks for the help. I have a factory service manual. I know where the wires go so I wired the transmission harness the factory way. The previous owner did something to defeat the safety interlock so it will start without a transmission harness.

Maybe I have a bad switch / sender depth. If I hook up the new junkyard transmission harness just like it shows in the service manual but pull the plug on the transmission what holes do I connect to make the car start? (This will test the switch)