5 Series E60 535d (M57T2) SAL
This change will also be incorporated into the E60/E61 at a later date.
Also new:
From 09/2005, the vehicle electrical system has been modified. The body gateway module (KGM) supersedes the
safety and gateway module (SGM).
Brief description of components
The following components deliver signals for the active seat back width adjustment:
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Centre console switch cluster
2 buttons for active seat back width adjustment are located in the centre console switch cluster (SZM): 1 button
for the driver's side, 1 button for the front-passenger side. These buttons have 3 positions. This means that
3 different characteristic maps can be selected: "Comfort", "Normal", "Sport".
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Control panel for seat adjustment
Each seat has a seat adjustment control panel. The width of the backrest can be adjusted individually using the
"OPEN" and "CLOSE" buttons. The control panel is connected via a K-bus to the centre console switch cluster
(SZM).
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Sensors in the active seat back width adjustment drive
The drive incorporates the following sensors:
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Limit-position switch
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2 Hall sensors
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Temperature sensor
The temperature sensor protects against overheating.
The other sensors monitor the drive's position and direction of rotation.
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Several control units are involved in the active seat back width adjustment:
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ALBFA and ALBBF: Active driver seat back width (ALBFA) and active front-passenger seat back width
(ALBBF)
The ALBFA control unit and the ALBBF control unit activate the active seat back width adjustment drives
(driver's seat or front-passenger seat). The signals are transmitted to the PT-CAN.
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DSC: Dynamic Stability Control
The DSC control unit sends the following signals for seat back width adjustment to the PT-CAN:
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Vehicle road speed
The DSC control unit calculates the car's road speed using the signals from the 4 wheel-speed sensors.
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Longitudinal acceleration
The DSC control unit calculates the longitudinal acceleration using the signal from the DSC sensor.
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Lateral acceleration
The DSC control unit calculates the lateral acceleration using the signal from the DSC sensor.
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Yaw rate
The DSC control unit calculates the rotation around the vertical axis using the signal from the DSC sensor.
•
Steering angle
SBT Active seat back width adjustment E60, E61
BMW AG - TIS
23.02.2013 02:09
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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