Audio System - Audi Music Interface(R) Int. Inoperative
91 CAN Audi Music Interface sporadically inoperative
91 10 21
2023416/1
May 4, 2010
Affected Vehicles
Condition
^ Audi Music Interface (AMI) is inoperative and devices such as iPods or USB sticks are not recognized when properly connected to an appropriate
adapter cable.
After a vehicle CAN bus sleep cycle, the AMI functions properly again.
Audi A4 Quattro Sedan (8K2) L4-2.0L Turbo (CAEB) Page 585
^ DTC 02078 (media player position 3 no signal/communication) is sporadically stored in the Gateway (address word 19).
^ Only vehicles with the CAN-based generation 3 radio (PR# 8UQ/8YN) and Audi Music Interface (PR# UF7) are affected.
Technical Background
Under certain circumstances the AMI control unit may not properly wake up after the CAN bus sleep and therefore it is not recognized by the
Gateway. When this occurs, no communication with the AMI control unit is possible.
Production Solution
Improved Audi Music Interface (R199) software.
Service
1. Follow all instructions in the attached TSB 2011732 00 Software Version Management (SVM), operating instructions.
2. Update the Audi Music Interface (R199) using the SVM action code as listed in the table above if necessary.
Warranty
Additional Information
The following Technical Service Bulletin will be necessary to complete this procedure:
^ TSB 2011732 00 Software Version Management (SVM), operating instructions.
All part and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Dept. and service manuals
for the latest information.
Audi A4 Quattro Sedan (8K2) L4-2.0L Turbo (CAEB) Page 586
Audi A4 Quattro Sedan (8K2) L4-2.0L Turbo (CAEB) Page 587
Audi A4 Quattro Sedan (8K2) L4-2.0L Turbo (CAEB) Page 588
Audi A4 Quattro Sedan (8K2) L4-2.0L Turbo (CAEB) Page 589
Audi A4 Quattro Sedan (8K2) L4-2.0L Turbo (CAEB) Page 590
Audi A4 Quattro Sedan (8K2) L4-2.0L Turbo (CAEB) Page 591
Audi A4 Quattro Sedan (8K2) L4-2.0L Turbo (CAEB) Page 592
Audi A4 Quattro Sedan (8K2) L4-2.0L Turbo (CAEB) Page 593
Attachment - TSB 2011732 00 Software Version Management (SVM), operating instructions.
