5 Series E61 523i (N52) TOUR
The windows and slide/tilt sunroof can be opened and closed with the remote control. The radio signals
from the remote control are received by the remote control receiver and transferred to the CAS control unit.
The CAS is connected to the KGM via the K-CAN.
The KGM controls following actuators:
•
Power window motor in the driver's door
•
Power window motor in the front passenger's door
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Gateway (= date interface)
The KGM is the data interface for following bus systems:
•
Body CAN
•
Powertrain CAN
•
LIN-bus
The diagnostic cable is connected to the KGM.
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Driver's door switch cluster
The driver's door switch cluster is connected to the KGM via the LIN-bus (LIN-bus stands for "Local Interconnect
Network Bus"; KGM stands for "Body-gateway module"). All the power windows as well as the outside mirrors
can be operated via the switch cluster in the driver's door.
•
Child safety lock switch
The child safety lock is activated/deactivated by the child safety lock switch in the switch cluster. The child
safety lock inhibits operation of the rear power windows via the rear power window switches.
The child safety lock of the power windows is controlled by the CAS. The KGM only reads in the status of
the child safety lock switch and activates the LED in the child safety lock switch (LED ON = child safety lock
activated).
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Servotronic valve
The body-gateway module (KGM) control the Servotronic valve.
The Servotronic controls the degree of assistance provided by the hydraulic steering as a function of the
vehicle's speed. The flow of hydraulic fluid is restricted to a greater or lesser extent depending on how the
Servotronic valve is actuated. Restriction of the flow depends on the current actuating the Servotronic valve.
The Servotronic valve is activated only when the engine is running.
Note: On vehicles with active steering.
In connection with the option SA 217 "Active steering", the control unit for the active steering activates the
Servotronic valve.
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Door contacts (Hall sensors)
The KGM receives signals from the door contact of the driver's door and from the door contact of the
passenger's door. The KGM makes available the signals to other bus users in the system network. The antitheft
alarm system (DWA), for instance, requires the signals for the purpose of monitoring the doors.
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Courtesy lighting
The courtesy lighting is integrated in the outside mirror.
The request to switch the courtesy lighting on and off is sent in the form of a CAN message
from the basic body module (KBM) to the KGM. The body-gateway module (KGM) actuates the courtesy lighting
via the LIN-bus.
The courtesy lighting switches on when the door is unlocked via the remote control. The courtesy lighting also
switches on every time the door is opened.
SBT Body-gateway module E60, E61, E63, E64
BMW AG - TIS
06.02.2013 01:02
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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