Body Basic Module (KBM)

The KBM supplies the position of the rear power windows. The signal is fed to the DWA control unit via the K-CAN.

The body basic module also monitors:

• Door contacts in rear doors
• Tailgate contact switch
• Rear window contact switch (E61 only)

The body basic module monitors the boot lid (open or closed). The signal is fed to the DWA control unit in the emergency power siren via the K-CAN.

When the boot-lid lock is mechanically unlocked with the key, the DWA alarm is triggered.