Just purchased a brand new B&P GP-20 30-20090-1 from Aurora Rails.
I didn't have my TIU set up yet but HAD to play with it.
Ran it conventional from my CW-80.
It came on in neutral of course, lighted number boards and headlight on the rear, but no lights on the front
Just got the TIU set up, thanks to Barry and others
Same thing, no headlight or number boards on the front.
Oh, well, it's under warranty.