Technical Service Bulletin
48 Red steering warning light is on, DTC C10AC07 is stored in the power steering control module
48 22 33 2064018/6 June 16, 2022. Supersedes Technical Service Bulletin Group 48 number 22-20 dated January 31,
2022, for reasons listed below.

Model(s)
A6, A7, A8, Q5,
SQ5, Q7, and Q8

e-tron quattro

Year

VIN Range

Vehicle-Specific Equipment

All

Not Applicable

2019 – 2022
2019
2021 – 2022

A6 allroad, S6.
S8, e-tron
Sportback

2020 – 2022

quattro, SQ7,
SQ8, and RS Q8
A8 e quattro

2020 – 2021

RS 6Avant, A7 e
quattro, S7, RS 7,
Q5 e quattro, Q5

2021 – 2022

Sportback, and
SQ5 Sportback

Condition
REVISION HISTORY

Page 1 of 5
© 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
Revision

Date

Purpose

6

-

Revised Service (Updated Note)

5

01/31/2022

Revised Service (Updated Note)
Revised header (Added Model)

4

12/14/2021

Revised Service (Updated SVM Code and added Note)

Customer states:
• The red steering warning lamp lights up in the instrument cluster.
• The steering is heavy.
Workshop findings:
• The concern can be reproduced.
The following DTC is logged in the power steering control module, J500 (address word 0044):
• DTC C10AC07 (Steering Malfunction) with symptom code 5258760.
Note:
• Only proceed with the SVM update if the DTC C10AC07 is present in the J500.
• If there are other DTCs logged in the J500, proceed with GFF/test plans to resolve them.
• If the steering is heavy and there are no DTCs logged, proceed with a normal diagnosis.

Technical Background
The software for the power steering control module, J500 (address word 0044) needs to be updated.

Page 2 of 5
© 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
Production Solution
New software implemented in production.

Service
Proceed as follows:
1.

Perform a visual check of the steering rack and steering boots, and verify if the steering wheel can be turned freely.

2.

Check the “Control module temperature” value of address word 0044. The temperature should be >10°C at the live measur
software update.

SVM Update Instructions
3.

Follow all instructions in TSB 2011732: 00 Software Version Management (SVM), operating instructions.

4.

Update the power steering control module, J500 (address word 0044) using the SVM action code 44A032 or (44A030 – See
parametrization of the control module.
Note:
A. The software version will not change.
B. Some specific hardware numbers may require the old SVM code 44A030.

Warranty
Claim Type:

• 110 up to 48 Months/50,000 Miles.
• G10 for CPO Covered Vehicles – Verify Owner.

Page 3 of 5
© 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
• If the vehicle is outside any warranty, this Technical Service Bulletin is informational
only.
Service Number:

4835

Damage Code:

0040

Labor Operations:

Remove and install noise insulation

1082 1900

See SRT with
associated
operations

Check steering rack for damage and free

4835 0199

20 TU

0151 0000

Time stated on

movement
Software Update (Includes checking for DTCs)

the diagnostic
protocol (Max 50
TU)
Diagnostic Time:

Claim Comment:

GFF

No allowance

0 TU

Road test prior to the service procedure

No allowance

0 TU

Road test after the service procedure

No allowance

0 TU

As per TSB 2064018/6

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
Page 4 of 5
© 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
The following Technical Service Bulletin(s) 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 (2064018) 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. 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.

Page 5 of 5
© 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.