I knew this would happen eventually to me and it did. Two wires came off the tender connector ( stiff wires as described in other posting ). Is there a diagram that shows which wire goes to wich connector at which location ? These wires are black, not color coded to function. 

I listed typical pinouts in this thread, might help you trace the wires. (scroll to about 6th post)

http://www.bachmanntrains.com/home-usa/board/index.php/topic,7439.0.html

thanks, i appreciate your help, as always.