Description Of On-Board Diagnostics

Navigation System III, On Board Diagnostic (OBD)

General Notes

Features
- Coupled navigation and usage of satellite navigation data.
- User guidance for destination entry and function selection via display in instrument cluster.
- Active destination guidance by driving suggestions via arrow symbols in instrument cluster display.
- Acoustic driving suggestions.
- Displays the street name that the vehicle is driving on.
- Distance display from current location to destination.
- Time of arrival displayed.

Function Description
The Audi navigation system III processes the signals of the world wide satellite navigation system GPS (Global Positioning System).

After start of operation, the vehicle location is determined with help from the signals for the satellite navigation system GPS.

If the vehicle is located in an area that is not recognized by the navigation-CD (country, city or street), the display "OFF ROAD" or "OFF MAP" appears in the display of the instrument cluster. Then only the straight line distance and direction to destination will be displayed, since the navigation system cannot compare the GPS signals and the vehicle measuring values with the stored information in this case.

Driving directions are not only played back acoustically (language), but are also represented as visual driving suggestions (arrows, turning suggestions) on the combination center display.

The navigation system is equipped with a DTC memory. When malfunctions occur in monitored components or wiring, Diagnostic Trouble Codes (DTCs) are stored in DTC memory with a description of the malfunction type.