A9124862069299_2

Technical Service Bulletin
91: Multiple warnings in the instrument cluster; no communication DTCs U014600, U044700, U166100,
U166200
91 24 86 2069299/2 March 12, 2024. Supersedes Technical Service Bulletin Group 91 number 23-67 dated
February 2, 2023 for reasons listed below.
Model(s)
Year
VIN Range
Vehicle-Specific Equipment
Q4 e-tron, and
Q4 Sportback etron
2022 - 2024
All
Not Applicable
Condition
REVISION HISTORY
Revision
Date
Purpose
2
-
Revised Technical Background (Included software optimization).
Revised Production Solution (Included software optimization).
1
02/02/2023
Initial publication
Customer states:
Multiple warning messages are displayed in the instrument cluster.
Workshop findings:
No communication with the following diagnostic addresses:
• 8123: Application Server 1 System 1 Adaptive.
• 8124: Application Server 1 System 2 Java.
• C002: Software Cluster Embedded 1.
• C003: Software Cluster Housekeeping 1.
The following DTC(s) are stored:
Engine Electronics Control Module, J623 (address word 0001):
• U014600: Lost Communication With Gateway A, active/static (symptom: 19870)
Brake Electronics Control Module, J104 (address word 0003):
• U044700: Diagnostic interface for data bus module 1, implausible signal”, active/static (symptom 82192)
Brake Boost Control Module, J539 (address word 0023):
• U044700: Diagnostic interface for data bus module 1, implausible signal, active/static (symptom 2101788)
Data Bus On Board Diagnostic Interface, J533 (address word 0019):
• U166100: Application Server 1 for System 1 Adaptive internal error, active/static (symptom: 2498822)
AND
© 2024 Audi of America, Inc.
Internal
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All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other
intellectual property rights of Audi of America, Inc., its affiliated companies, and its licensors. All rights are reserved to make changes at any time without notice. No part of this
document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may
these materials be modified or reposted to other sites, without the prior expressed written permission of the publisher.
Technical Service Bulletin
• U166200: Application server 1 for system 2 Java internal error, active/static (symptom: 2498823)
Technical Background
Hardware and software issue in ICAS (integrated car application server) – (address word 0019).
Production Solution
Software optimization for ICAS (integrated car application server) – (address word 0019). In ME 3.5 from software
version 0307 onwards.
Service
Please replace the Data Bus On Board Diagnostic Interface, -J533- (address word 0019).
Warranty
Claim Type:
• 110 up to 48 Months/50,000 Miles.
• G10 for CPO Covered Vehicles – Verify Owner.
• If the vehicle is outside of any warranty, this Technical Service Bulletin is
informational only.
Service Number:
9035
Damage Code:
0040
Labor Operations:
Remove and install data bus control unit
9035 1950
See SRT with
associated
operations
GFF / Guided Functions
0150 0000
Time stated on the
diagnostic protocol
(Max 100TU)
Claim Comment:
Road test prior to the service procedure
No allowance
0 TU
Road test after the service procedure
No allowance
0 TU
As per TSB 2069299/2
All warranty claims submitted for payment must be in accordance with the Audi Warranty Policies and Procedures
Manual. Claims are subject to review or audit by Audi Warranty.
© 2024 Audi of America, Inc.
Internal
Page 2 of 3
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other
intellectual property rights of Audi of America, Inc., its affiliated companies, and its licensors. All rights are reserved to make changes at any time without notice. No part of this
document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may
these materials be modified or reposted to other sites, without the prior expressed written permission of the publisher.
Technical Service Bulletin
Additional Information
All part and service references provided in this TSB (2069299) are subject to change and/or removal. Always
check with your Parts Department and/or ETKA for the latest information and parts bulletins. Please check the
Repair Manual for fasteners, bolts, nuts, and screws that require replacement during the repair.
©2024 Audi of America, Inc. All rights reserved. The information contained in this document is based on the
latest information available at the time of printing and is subject to the copyright and other intellectual property
rights of Audi of America, Inc., its affiliated companies, and its licensors. All rights are reserved to make changes
at any time without notice. No part of this document may be reproduced, stored in a retrieval system, or
transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may
these materials be modified or reposted to other sites without the prior expressed written permission of the
publisher.
© 2024 Audi of America, Inc.
Internal
Page 3 of 3
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other
intellectual property rights of Audi of America, Inc., its affiliated companies, and its licensors. All rights are reserved to make changes at any time without notice. No part of this
document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, nor may
these materials be modified or reposted to other sites, without the prior expressed written permission of the publisher.