i have interesting case,
for my bench setup i have KGM from E60 (High, Dcan) works fine,
I also have JBE from E90 2006, and did not succeed to make it work,
it has no wire on pin 17, therefore its K=Line for sure,
my only success was limited when i connected obd pin 7 to pin 33 on jbe and 4,5 from obd to ground, only in this case i got "datatransmission to interface disturbed"
any other connection variations would result error "no response from controlunit"
i would blame my cable or setup, but i had this setup/cable working with k=line cars for sure, so i doubt my jbe is bad
btw, here is document also, describing(i guess) k-line version of JBEs,
pay attention to pin 17 @ 14271
https://dl.dropboxusercontent.com/u/...e91%2C-e92.pdf