5 Series E60 535d (M57TU) SAL
opened) if there is still a closed-circuit current transgression.
Shut-down or reset is entered in the info memory of the body-gateway module.
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CAS: Car Access System
The CAS controls the access options to the vehicle. The CAS control unit is, amongst other things, the master
for the central locking system, the electronic immobiliser and the electrical steering lock.
The CAS is connected via the K-CAN to the body-gateway module (KGM).
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Door entry lighting
Control of the door entry lighting at the front is distributed over two control units (KGM, KBM). The basic body
module (KBM) is the master control unit for the door entry lighting. The KBM sends a CAN message to the body-
gateway module (KGM).
In turn, the KGM activates the door entry lights at the front (driver's and passenger's side).
The door entry light is located in the bottom area of the front door. The door entry lighting illuminates the ground
outside the vehicle in the area of the front door. The door entry lighting switches on or off when the front door is
opened or closed.
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Electrochromic rear-view mirror
The electrochromic rear-view mirror has 2 sensors that measure incident light from the front and the rear. A
voltage signal is output (the strength of which depends on the difference in intensity between the light from the
front and the rear) if the light from the rear is more intense. The greater the voltage signal the more the interior
rear-view mirror and the outside mirrors are darkened. The body-gateway module (KGM) receives the voltage
signals. The electrochromic outside mirrors are controlled by the KGM via the LIN bus.
Signal path:
Electrochromic interior rear-view mirror -> direct cable -> KGM -> LIN-bus -> Electrochromic outside mirror
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Energy history memory
The energy history memory is important for energy diagnosis.
The energy history memory records vehicle operating cycles, e.g. every time control units are woken or wake up,
sleep mode is prevented etc.
The vehicle operating cycles are stored together with the kilometre reading, time and cause, making it possible
to identify the defective control unit in the case of closed-circuit current transgressions.
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Front power windows
All the power windows can be operated via the switch cluster in the driver's door. The body-gateway module
(KGM) controls only the front power windows. The rear power windows are controlled by the basic body module
(KBM).
The car access system (CAS) is the master control unit for the power window function. The KGM is connected to
the CAS via the K-CAN.
The KGM evaluates the signals from the front power window switches and the signals from the switch cluster in
the driver's door.
The KGM controls and monitors the front power windows.
The KGM receives signals from following components:
•
Power window switches in the switch cluster in the driver's door (via LIN-bus)
•
Power window switch in the front passenger door
The power window switch is connected directly to the KGM.
•
Hall sensors in the power-window motors
2 Hall sensors are integrated in each of the power window motors at the front. The direction of rotation,
speed and position can be determined through these.
•
Remote control (auto-remote opening and auto-remote closing)
SBT Body-gateway module E60, E61, E63, E64
BMW AG - TIS
23.02.2013 02:00
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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