Older TMCC locomotive forgets it's identity - SOLVED

Have you tried unplugging the radio board and plugging it back in again? Sometimes micro corrosion forming on the pins can cause problems that can be fixed by this simple trick.

Running a few inches and then stopping is sometimes caused by intermittent contact with the outside rails and the wheels, Make sure the wheels are clean. Check the pilot and trailing trucks to make sure the axle wipers are making contact and the ground wires to them are intact.

Thanks, RoyBoy.  This isn’t my locomotive so I did not take it apart, at least not yet.  The wheels and rollers look good so I don’t think it is a pickup problem.  Also, when it stops, you can restart simply by readdressing it (Eng # Start) all without touching it.  You might be right about reseating the R2LC.  I am inclined to think the problem is the R2LC because of the behavior - go 2 feet and stop, repeatedly.  I also noticed that I didn’t seem to have throttle control for the 2 feet it moved.  I just want to see if anyone had seen this before I open it.

I'd swap the R2LC first, but it could also be the CC-M failing.

You were right RoyBoy, loose R2LC.  Pulled it out and reset it and everything works fine.  Less than 30 minutes total time including test running.

Thanks RoyBoy and John.

Thank you for reporting the solution. That adds to the general knowledge base for everyone.