TT Quattro Coupe L4-1.8L Turbo (AMU) (2001)
/Page-17001.png)
Navigation Module: All Technical Service Bulletins
Navigation System - False CAN Communication Faults
91 07 59
2016907/1
Dec. 10, 2007
Vehicle Information
Condition
No customer complaint, but in the fault protocol of the Navigation 4, one or several sporadic communication faults about other control units are logged.
The function of the navigation system is not affected.
Technical Background
When starting the vehicle, the battery voltage may drop so far that the communication on the data bus is briefly disrupted.
Production Solution
No change.
Service
Ignore and erase the fault code entries if there is no customer complaint. A replacement of the navigation system is not necessary. Unnecessarily replaced
systems will be re-debited.
Warranty
This TSB is informational only and not applicable to any Audi warranty.
Additional Information
All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service
manuals for the latest information.