911 Carrera Cabriolet (996) F6-3.6L (2003)
during an ASR control operation, this procedure is immediately interrupted in order to initiate an ABS control operation. During an FDR control
operation, these signals are processed in addition to the brake pressure signal.
Steering-angle sensor
The steering-angle sensor supplies information about the slip angle of the front wheels to the PSM control module (intention of driver in relation to
direction of travel). In the PSM control module this signal is used to calculate the required vehicle behaviour with respect to its transverse dynamics by
means of the calculation of the vehicle speed. The sensor has its own micro-controller. The information is transmitted to the PSM control module by
means of a CAN bus.Without the information from the steering-angle sensor, the PSM control module cannot produce a picture of the desired direction
of travel. If the steering angle sensor is replaced, a calibration must be performed.
PSM OFF switch
The system can be switched off by means of a switch in the centre console. System deactivation is displayed by the indicator light in the PSM switch and
in the instrument cluster. The ABD function (automatic brake differential) is maintained when the PSM is switched off. For safety reasons, the driving
dynamics control is reactivated temporarily for the duration of one brake pedal actuation.
Switch for parking brake control
When the parking brake is engaged, the parking brake contact closes and sends a ground signal to the PSM control module. In order to avoid an
excessive increase of the torque on the drive wheels, engine drag torque control operation is not permitted if a signal is present.
Speed sensors
The wheel speed sensors supply the PSM control module with information about the current wheel speed.
System Description
System description
Basic functions of the PCM
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Audio (tuner with cassette drive)
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GSM telephone with SIM card reader
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Navigation On-board computer
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A/C display
Navigation
The highly accurate satellite-based navigation system permits rapid and sure guidance to an input destination in areas for which a digitized road map on
CD-ROM is available. Route guidance is realised by means of driving instructions with voice output in various selectable national languages, supported
by arrow or map displays on the screen.
Audio
Buttons for selecting the various audio sources (AM/FM tuner, cassette, CD) are located on the left side of the front panel.
The RDS names of the stations of the current memory level stored at the station buttons are shown on the function display offered during FM radio