A9122132053776_8

Technical Service Bulletin
91 Adaptive Cruise Assist is not available, DTCs C12EBF1, C12EB92 is stored in the laserscanner
91 22 13 2053776/8 July 28, 2022. Supersedes Technical Service Bulletin Group 91 number 20-54 dated December
18, 2020, for reasons listed below.
Model(s)
Year
A8
2019 – 2024
A6, S6, A7, S7,
and Q8
VIN Range
Vehicle-Specific Equipment
All
Adaptive Cruise Control
2019 – 2020
e-tron quattro
2019
S8
2020 – 2024
A8 e quattro
2020 – 2021
e-tron Sportback
quattro, SQ8, and
2020
RS Q8
Condition
REVISION HISTORY
Revision
Date
Purpose
8
-
Revised header (Added MY22/23/24)
Revised Technical Background (Added DTC description)
Revised Service (Updated procedure for SW0306)
Page 1 of 6
© 2022 Audi of America, Inc.
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
Revised Warranty (updated labor ops according to updated service
procedure)
7
12/18/2020
Revised header (Added MY21 and expanded applicable vehicles)
Revised Service (Updated SVM code)
6
06/19/2020
Revised Warranty (Updated Labor Operation)
Customer states:
• The adaptive driving assistance is not available or cannot be activated.
Workshop findings:
One of the following DTCs may be stored in the control module for laser scanner, J1122 (address word 00CD):
• DTC C12EBF1 (laser for adaptive cruise control, malfunction) with symptom code 11546627.
Or
• DTC C12EB92 (laser for adaptive cruise control, malfunction) with symptom code 11546631 and/or 11546632.
Technical Background
A software malfunction may cause certain DTCs to enter erroneously
Event memory entry/symptom
Conditions
Fault message in the
instrument cluster?
C12EBF1 / 11546627
Diagnosis detected discrepancies
Laser for adaptive cruise control Malfunction
in cover on laser scanner
NO
Page 2 of 6
© 2022 Audi of America, Inc.
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
C12EB92 / 11546631
Diagnosis detected that cover on
Laser for adaptive cruise control Malfunction
laser scanner is missing
C12EB92 / 11546632
Event memory entry C12EB92 /
Laser for adaptive cruise control Malfunction
11546631 logged three times
YES
YES
Production Solution
Not Applicable.
Service
If the software version is lower than SW 0306:
SVM Update Instructions:
1. Follow all instructions in TSB 2011732: 00 Software Version Management (SVM), operating instructions.
2. Update the control module for lasers canner, J1122 (address word 00CD) using the SVM action code as listed in
the table below, if necessary:
Model
Old Software
Old Software
New Software Part New Software
Part Number
Version
Number
SVM Code Input
Version
(or higher)
A6, A7, A8,
4K8907660B
0200
Q8, and Audi
4K8907660C
0201
e-tron quattro
4K8907660D
0202
4K8907660E
0306
CDA003
Page 3 of 6
© 2022 Audi of America, Inc.
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
0304
Tip: After the update, a bus sleep has to be awaited before clearing DTCs.
If the software version is exactly SW 0306:
Please check the table below for the service procedure according to the DTCs stored:
Event memory
Conditions
entry/symptom
Fault message Measure
in the
instrument
cluster
C12EBF1 / 11546627
Diagnosis
NO (from
Check laser scanner for damage and dirt.
Laser for adaptive cruise
detected
SW0205
If no issues are found, further measures are
control Malfunction
discrepancies in
onwards)
generally not necessary.
cover on laser
Note:
scanner
If the software version of the control unit for
laser distance control J1122 is SW0205 or newer,
event memory entry “C12EBF1: laser for
adaptive cruise control Malfunction” with
symptom no. 11546627 may still be logged
statically. Because of a changed reaction class,
this event memory entry has no impact on the
function of the adaptive cruise assist and can
be ignored.
C12EB92 / 11546631
Diagnosis
YES
Check laser scanner for damage and dirt.
detected that
Page 4 of 6
© 2022 Audi of America, Inc.
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
Laser for adaptive cruise
cover on laser
If no issues are found, please work through the
control Malfunction
scanner is missing
test plan stored for these event memory entries
in ODIS. The event memory entry is erased
when you complete the test plan; further
measures are generally not necessary.
C12EB92 / 11546632
Event memory
YES
Check laser scanner for damage and dirt.
Laser for adaptive cruise
entry C12EB92 /
If no issues are found, please work through the
control Malfunction
11546631 logged
test plan stored for these event memory entries
three times
in ODIS. The event memory entry is erased
when you complete the test plan; further
measures are generally not necessary.
Warranty
Claim Type:
• 110 up to 48 Months/50,000 Miles.
• G10 for CPO Covered Vehicles – Verify Owner.
• If vehicle is outside any warranty, this Technical Service Bulletin is informational only.
Service Number:
9159
Damage Code:
0039
Labor Operations:
Software Update
0151 0000
Time stated on
the diagnostic
protocol (Max
100 TU)
Page 5 of 6
© 2022 Audi of America, Inc.
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
Diagnostic Time:
Claim Comment:
Check laser scanner control unit
9159 0199
10 TU
GFF
No allowance
0 TU
Road test prior to service procedure
No allowance
0 TU
Road test after service procedure
No allowance
0 TU
As per TSB 2053776/8
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.
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 (2053776) 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.
©2022 Audi of America, Inc. 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.
Page 6 of 6
© 2022 Audi of America, Inc.
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.