3 Series E91 330xi (N52) TOUR
Brief description of components
The following components are described for the Dynamic Stability Control (DSC):
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DSC unit
The DSC unit consists of the components DSC control unit and hydraulic unit.
The DSC control unit regulates the pressure in the brake system via the hydraulic unit (comprises valve block
and pump motor).
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Brake light switch
The brake light switch tells the DSC when the brake pedal has been pressed.
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4 wheel-speed sensors
The active wheel-speed sensors register the speed of an individual wheel at their circumference. Moreover, the
wheel-speed sensors also recognise the direction of rotation (forwards or backwards).
When a wheel is stationary, the wheel-speed sensor emits a pulse every 0.75 seconds.
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DSC sensor
The DSC sensor measures:
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Vehicle rotation around the vertical axis (yaw rate)
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Lateral acceleration of vehicle
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Longitudinal acceleration of vehicle
> E60, E61, E63, E64
The DSC sensor is linked to the DSC control unit by the F-CAN (chassis CAN).
The DSC sensor is secured to the floor assembly under the front-passenger seat.
> E83
The DSC sensor is connected to the DSC control unit via the PT-CAN (powertrain CAN).
The DSC sensor is secured to the retainer plate for the parking brake lever.
> E90, E91, E92
The DSC sensor is linked to the DSC control unit by the F-CAN (chassis CAN).
The DSC sensor is located on the seat cross member under the driver's seat.
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Steering-angle sensor
The steering-angle sensor registers the movements of the steering wheel.
> E60, E61, E63, E64
The steering-angle sensor is part of the steering column switch cluster (SZL).
The steering column switch cluster is connected to the F-CAN (chassis CAN) and to the PT-CAN (powertrain
CAN).
> E90, E91, E92
The steering-angle sensor is part of the steering column switch cluster (SZL).
The steering column switch cluster is connected to the F-CAN (chassis CAN).
> E83
The steering-angle sensor is fitted to the steering spindle. The steering angle sensor is connected to the PT-
CAN (powertrain CAN).
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Internal brake pressure sensor
SBT Dynamic Stability Control 8Plus E60, E61, E63, E64, E83, E90, E91, E92
BMW AG - TIS
22.02.2013 01:27
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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