[Gurubash]

Hello guys, I have a little problem with my FEM...

My BMW F31 320xd (2016), was completly fine before I tried to coding retrofit Eletric pivot trailer... (yea you are right, I'm amatere in case of a ISTA+ & ISTA-P)

After I mounted Eletric pivot trailer tow hitch by retrofit (not coding yet) the vehicle aware me, that eletricity for tow hitch is not function... But all was still OK then I downloaded ISTA-P v.3.63.2.001 & ISTA-D v.4.09.13 and tried to coding my Eletric pivot trailer tow hitch retrofit. The ISTA-P made a complete vehicle coding and then came a problem with FEM which is not comunating now. I tried to delete fault memory but fault is still there.

I'm using only ISTA-P v.3.63.2.001 & ISTA-D v.4.09.13 with Enet cabel, is neccessery to download something more?
Please explain everything to me as a novice
Thank you for your tips and coments.