Connection To The Controller

The Controller is connected directly to the BZM by a 16-wire ribbon cable.

Fig 1: Identifying Connection To Controller

Courtesy of BMW OF NORTH AMERICA, INC.

The BZM is fitted inside the center console underneath the Controller. The control panel units for seat adjustment and auxiliary seat functions are also connected to the BZM.

The BZM has no connection with the functions of the Controller. The bus leads from the K-CAN-S to the Controller are simply looped through the BZM.

Fig 2: Exploded View Of Control Panel Units

Courtesy of BMW OF NORTH AMERICA, INC.