91 Adaptive Cruise Assist is not available, DTCs C12EBF1, C12EB92 is stored in the laserscanner
91 20 54 2053776/7 December 18, 2020. Supersedes Technical Service Bulletin Group 91 number 20-80 dated
June 19, 2020 for reasons listed below.
Model(s)

Year

VIN Range

Vehicle-Specific Equipment

Q7, Audi etron
Sportback

2020 -2021

All

Adaptive Cruise Assist

A7, A8, Q8,
and Audi etron quattro

2019 - 2021

All

Adaptive Cruise Assist

Condition
REVISION HISTORY
Revision

Date

Purpose

7

-

Revised header (Added MY21 and expanded applicable vehicles)
Revised Service (Updated SVM code)

6

06/19/2020

Revised Warranty (Updated Labor Operation)

5

03/06/2020

Revised header (Removed inapplicable DTCs)
Revised Condition (Removed inapplicable DTCs)
Revised Warranty (Updated Labor Operations)

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 laserscanner, 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
The software needs to be updated to correct the adaptive driving assistance activation issue.

Page 1 of 4
© 2020 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.

Production Solution
Not applicable.

Service
If DTC C12EB92 is stored:
1. Replace the control module for laserscanner, J1122 (address word 00CD) according to the repair manual.
2. After the parts are replaced, check the software version:
 SW Version 0306: no further actions necessary.
 SW Version < 0306: perform the SVM code listed below.
Note:
If DTC C12EB92 is not stored, there is no need to replace the control module. Please just run the SVM code
in that case.

SVM Update Instructions:
3. Follow all instructions in TSB 2011732: 00 Software Version Management (SVM), operating instructions.
4. Update the control module for laserscanner, J1122 (address word 00CD) using the SVM action code as listed
in the table below, if necessary:

Model

Old Software
Part Number

Old Software New Software
Version
Part Number

New Software
Version

SVM Code Input

(or higher)

A6, A7, A8,
Q8, and Audi
e-tron quattro

4K8907660B
4K8907660C
4K8907660D

0200
0201
0202

4K8907660E

0306

CDA003

0304

Tip: After the update, a bus sleep has to be awaited before clearing DTCs.

Page 2 of 4
© 2020 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.

Tip: After the update to SW0304, the DTC C12EBF1 with symptom code 11546627 may still be stored.
However, this DTC has no more influence on the system’s functionality after the update and can now be ignored.
If the adaptive cruise assist can be reactivated, the vehicle can be released to the customer.

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
75 TU)

If DTC C12EB92 was stored:
ECM for Laser Adaptive CC remove + reinstall 9159 1950

See SRT with
associated
operations

ECM for Laser Adaptive CC adjust with
associated operations if necessary

See SRT with
associated
operations

9159 1550

If removal of the bumper cover is required (select applicable options):
Camera f night vision sys adjusted

9080 1550

See SRT with
associated
operations

Overhead view camera adjusted

9083 1550

See SRT with
associated
operations

2 ECM object recognition adjusted with
associated operations if necessary

9158 1660

See SRT with
associated
operations

Page 3 of 4
© 2020 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.

Diagnostic Time:

Claim Comment:

Radar sensor adjusted

9163 1550

See SRT with
associated
operations

GFF (Only if removal of the bumper cover
is required)

0150 0000

Time stated on
the diagnostic
protocol (Max
50 TU)

Road test prior to service procedure

No allowance

0 TU

Road test after service procedure

No allowance

0 TU

As per TSB #2053776/7

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.
©2020 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 4 of 4
© 2020 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.