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Service Checklist
Check the following points during servicing!
1) Is the operating power supply all right?
2) Is the basic navigation unit mounted so that it is free of vibration?
3) Has the navigation CD-ROM been loaded correctly into the CD-
ROM player?
4) Has the mounting location for the magnetic field sensor been
selected correctly?
5) Does the customer transport metal parts frequently and are
these parts in the vicinity of the magnetic field sensor?
6) Have the wheel sensors been installed on the free-rolling wheels
at a distance of 5 to 8 mm from the magnetic strips?
7) Have the wheel sensors been mounted on the corner clamps so
that they are free of vibration?
8) Have the magnetic strips been mounted correctly and not
damaged?
9) Have the magnetic strips been glued in straight with a gap of not
more than 2.5 cm?
10) Has the precision resistor been mounted correctly and its
operation tested?
11) Is the GPS antenna all right, is the reception obstructed in any
way?
Error message list
The following error messages can appear in the top line on the
screen in any menu regardless of what function is currently being
performed.
„Check r. wheel sensor“, „Check l. wheel sensor“:
No signals are being received from the wheel sensor indicated, or the
signals are being interrupted sporadically. This error can only be registered
while the car is in motion.
„Check the compass“:
The compass is not connected or the voltage level of the compass is
outside of the valid value range. This error can only be registered while
the car is in motion.
„Check the GPS antenna“:
The GPS antenna wire is faulty. This message will appear only if the GPS
receiver is connected.
„CD reading error“:
Either no data is being read from the CD or the CD player is making
repeated transmission errors. This may be caused by damp or dirty CDs,
CDs slipping in the cartridge or errors on the CD in the map data.
„Please insert disk“:
The CD has been removed while the system was in operation. If the
navigation programme continues to try and retrieve data from the CD in
order to load the map data or calculate a route, for example, then the error
message „CD reading error“ may appear.
„No voice output“:
Voice output is not possible because the vocabulary data is being loaded.
This message will only then appear, when the user allows the acoustic
driving recommendation to repeat.
„No GPS receiver connected“:
will appear in the DSC MENU / GPS STATUS if no data is received from
the GPS receiver via the serial interface. Possible causes: The wire
connecting the GPS receiver and the navigation unit is not hooked up or
is damaged, the power supply to the GPS receiver is faulty.
„No position“:
This message will appear in the DSC MENU / GPS STATUS without
including the number of satellites, if there is no information to be
evaluated from the telegram from the GPS receiver directly after the
system has been started. If the number of satellites appears on the
screen, then the current location cannot be determined because there
are not enough satellites available for locating.
„Language is being loaded“:
will appear in the DSC MENU / AUDIO MENU, when the current
vocabulary data is being loaded into the speech processor. This process
takes approximately 15 minutes and is done automatically when the data
in the speech processor storage has been lost, for example, after an
interruption in the power supply or when a different language has been
selected.
„No crossing exists“:
In order to enter a location into the DSC MENU / LOCATION ENTRY, you
must also enter a crossing. If a location is entered for which no street
names are known or if a street in the city is entered, but no crossing is
known, then this error message will appear.
„The streets cross repeatedly“:
When entering the location, streets have been selected which cross each
other more than once, for example, because they are crescent-shaped.
