I had an SD70ACe with working ditch lights a first. One of
the ditch lights would work then one light would get dim
and go out. It was returned to Lionel and they
fixed it.
Is it only the ditch lights with a problem?
Pressing the Ditch light on/off icon will change
the ditch light pattern but it is hard to read what
the setting shows in the strip at the top of the display.
Press the ditch on/off button and try the ditch lights.
Keep trying until you get the display you want, ditch lights on, off
flashing when horn operating.