46 DTCS Stored In The Abs Control Unit Related To Parking Brake Switch; C100C07, C100C29 (GROUP 46, NO. 23-45)

46 DTCS STORED IN THE ABS CONTROL UNIT RELATED TO PARKING BRAKE SWITCH; C100C07, C100C29

TECHNICAL SERVICE BULLETIN

SERVICE INFORMATION

46 23 45 2070679/1 June 20, 2023.

Model(s)	Year	VIN Range	Vehicle-Specific Equipment
All Audi Vehicles	2012 - 2025	All	Not Applicable

CONDITION

Customer states: 

Parking brake malfunction warning in the cluster.

Workshop findings: 

One or more of the following DTCs are stored in the ABS control unit address word (0003):

• C100C07 Electro-mechanical parking brake button mechanical malfunction.
• C100C29 Electro-mechanical parking brake button implausible signal.

TECHNICAL BACKGROUND

The DTCs are stored when the corresponding switch is pressed and held for a short time. This can happen by accident (for example: when pressing the parking brake switch while using the MMI). The switch can also get stuck if a foreign object has entered the gap around the switch from outside.

PRODUCTION SOLUTION

Not Applicable

SERVICE

Find out from the customer how they use the corresponding switch. If a DTC was caused due to the switch being held down accidentally or getting stuck, replacing parts will not fix the problem  .

WARRANTY

This TSB is informational only and not applicable to any Audi warranty.

ADDITIONAL INFORMATION

© 2023 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. 

All part and service references provided in this TSB (2070679)  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.

©2023 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.