KGM: Body Gateway Module
E60, E61, E63, E64 from 09/2005 From 09/2005, the vehicle electrical system has been modified.
The body gateway module (KGM) supersedes the SGM. The KGM is the data interface (= gateway) between the K-CAN and the PT-CAN. (K-CAN = body CAN; PT-CAN = powertrain CAN.) The diagnosis wire is connected to the KGM.