Problem adding engine

All proto-2 & 3 should remain dark & silent whether they've been added to the remote or not upon power up... Seems there's a problem  already,. Why is the engine not seeing the dcs watch dog signal..?

However it could be in the inactive list or if one doesn't use a programming track  the engine may   even have a completely new name or ID.  Are there any engines in the remote with just an ID number ?

I'd  at least try adding  it on a small test track  that has  a perfect dcs signal.

If I had to guess, I'd say that somehow the loco has gotten its ID changed.  You could try this: 

(1) back up your remote to a PC usinf Loader 5.0, so that you can restore it.

(2) Place only this loco on the track and press READ.

(3) If the engine shows up with a different ID.  Go to edit engine and change the ID address back to where it was.

(4) Restore the remote from your PC.

If you have multiple remotes, only add engines from one of them, and use the Loader's backup & restore functions to make them all clones.

Problem resolved. I set up a separate track hooked up as the sole output from TIU1. i put the problem engine on this track, added it as a new engine, and all was well. I did the same thing with another engine  and will add all new engines in this manner in the future. Thanks for the suggestions. Paul