E39 Low cluster with bc retrofit (help)

[tonix1996]

Hello. I need some help. On my 1997 e39 I had the simpliest low cluster without BC and the little car that shows the doors etc.. now I have swapped it with a new cluster still low but with these functions and I coded the vin to the cluster and copied the zcs/fa from ews. The little car with doors and lights works but the BC button does nothing. Do I need to code something else? Maybe add the function to the  zcs? Or maybe swap to a newer lcm? thank youu.