New to TMCC changing eng ID

I'm a bit confused by your post. Is it the ERR upgrade thats not programming or another TMCC loco?

At any rate, TMCC locos typically are programmed  by:

1. Put Run/ Prgrm switch to program, power up loco.

2. Press ENG, your desired i.d#, then set, whistle will blow.

3. Remove power and put switch in run position, repower and address it with the new i.d.#

the ERR upgraded one. that was the steps I did and it didn't work so I repeated the steps on the lionel lionmaster sd90 that came with tmcc and it worked so I'm wondering if I did something wrong in the upgrade.

If your referring to "the steps you did" as the steps in your first post, try mine. Your steps have extra keystrokes that Lionel has never used when programming. Even the newset legacy locos are programmed the way I indicated.

I'm not familiar with whether or not ERR takes programming differently but its worth a shot.

Follow the steps here, 

http://www.lionel.com/ForTheHo...oreTMCCfunctions.pdf

  Make a copy for future reference. Also engine manuals will have the sequence to use

Bill

resolved the run/program switch didn't have full travel. reprogramed the engine and it worked. the spinning of the dial replaced batteries and had some loose tabs that held the battery. all works fine now