E85 Information/Communication
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- GPS aerial
The GPS aerial receives the signals from GPS satellites and
transfers the data (degrees longitude, degrees latitude,
Greenwich meantime (GMT)) to the GPS receiver in the
navigation computer DVD for the purpose of calculating the
position.
This is of particular importance during initial or re-initialization of
the system. These data are also read in during the restart
procedure.
The GPS aerial is located in the middle of the roof frame behind
the interior lamp.
- Wheel speed sensor
The wheel speed sensor determines the rotary motion of the
wheel. The information is routed to the ABS/DSC control unit
and the corresponding distance calculated. The conditioned
signal is then made available to the navigation computer.
The ABS sensor at the rear left is used for the purpose of deter-
mining the speed signal.
- Reversing light switch
With the aid of the reversing light switch, the navigation system
detects whether reverse gear is engaged.
On manual transmission vehicles, the reversing light switch is
located in the manual gearbox.
On automatic vehicles, the reversing signal comes from the
selector lever switch.
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