A9424802055123_5

Technical Service Bulletin
94 Rear lighting warning displayed in the instrument cluster, various DTCs stored in the comfort system
control module
94 24 80 2055123/5 April 26, 2024. Supersedes Technical Service Bulletin Group 94 number 21-32 dated
January 7, 2021 for reasons listed below.
Model(s)
Year
Q5, and SQ5
2018 - 2020
A6, A7, A8
2019 - 2020
A6 allroad, S6,
S7, A8 e quattro,
S8, and Q5 e
quattro
VIN Range
Vehicle-Specific Equipment
All
Not Applicable
2020
Condition
REVISION HISTORY
Revision
Date
Purpose
5
-
Revised Warranty (Updated Labor Operation)
4
01/08/2021
Revised Warranty (Updated Labor Operation)
3
12/17/2020
Revised title
Revised header (Updated Elsa display)
Revised Warranty (Added GFF)
Customer states:
• There is a warning message regarding a failure of the rear lighting displayed in the instrument cluster.
A6, A7, and A8:
• The rear lighting operates properly.
Q5:
• The rear lighting function is switched to the lower bumper as if the trunk is open.
Workshop findings:
One or more of the following DTCs are stored as static or sporadic in the comfort system central control module,
J393 (address word 0046):
• DTC B12C315 (Right brake light bulb, interruption/short circuit to positive).
• DTC B12C215 (Left brake light bulb, interruption/short circuit to positive).
• DTC B133A15 (Bulb for left brake and tail light, interruption/short circuit to positive).
• DTC B133C15 (Bulb for right brake and tail light, interruption/short circuit to positive).
© 2024 Audi of America, Inc.
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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
• DTC B12BE15 (Left tail light bulb, interruption/short circuit to positive).
• DTC B12BF15 (Right tail light bulb, interruption/short circuit to positive).
• DTC B12C615 (Bulb for high-level brake light, interruption/short circuit to positive).
Technical Background
A loss of communication between the internal components of the comfort system central control module, J393
(address word 0046) can result in the warning and faults displayed.
Production Solution
Optimized software is now available for the comfort system central control module, J393 (address word 0046).
Service
SVM Update Instructions
1. Follow all instructions in TSB 2011732: 00 Software Version Management (SVM), operating instructions.
2. Update the comfort system central control module, J393 (address word 0046) using the SVM action code as
listed in the table below, if necessary:
Model
Old Software Part
Number
Old Software
Version
New Software Part New Software
Number
Version
SVM Code
Input
(or higher)
A6, A7, A8,
and Q5
4N0907064*
*
4N0907064*
0183
46A029
Tip: Keep the key placed against the reader coil for the duration of the flash.
Warranty
Claim Type:
• 110 up to 48 Months/50,000 Miles.
• G10 for CPO Covered Vehicles – Verify Owner.
• If the vehicle is outside any warranty, this Technical Service Bulletin is
informational only.
© 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
Service Number:
5789
Damage Code:
0039
Labor Operations:
Software Update
0151 0000
Time stated on the
diagnostic protocol
(Max 75 TU)
Diagnostic Time:
Claim Comment:
GFF
No allowance
0 TU
Charge Battery
2706 8950
See SRT with
associated
operations
Road test prior to the service procedure
No allowance
0 TU
Road test after the service procedure
No allowance
0 TU
As per TSB 2055123/5
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.
Required Parts and Tools
Tool Number
Tool Description
VAS 6160/VAS 6150
VAS tester with current version of ODIS (Windows 10)
Additional Information
All part and service references provided in this TSB (2055123) 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.