Are you able to tell us the terminal # that it ataches to? It would be interesting to look at the schematics and see if it is connecting to somthing or just going to a blank.
sorry to hijack your post but can some tell me how the kickdown switch on the passanger side is suppost to run all the way over to the driver side of the tranny? Every th400 I have ever seen has the switch on the driver side.