I just put a Bafang BSSHD 1000w,52v,DPC010 display with 20AH battery on my MTB.it turns on, display works fine without any codes. No mater witch mode its in there's no power from motor. and there's a three wire plug that is a battery communication cable (looked it up) that goes to nothing I can see. I have checked all plugs and pins are good 2.