If you're programmed it and attempted to address it with a TMCC command, you should be able to control the lights with AUX2. If nothing works, I'd be looking at the TMCC package. I've found that some of these have a layout that doesn't allow the board to seat properly. Lionel attempted to "fix" this by strapping the boards cocked in the socket with cable ties. This wasn't a good solution and it didn't function well. Since the lights are command controlled, it sounds like the R2LC may be out of the socket, they default to on I believe.