A4524412073483_1
Service Bulletin Details
Public Details for: A4524412073483_1
This bulletin provides information when the abs/esc control unit cannot be reached "dtc U012100 - abs control module no communication" is stored.
- 2024 - 2023 - 2022 - 2021 - 2019 -
Models from 2024
2024 AUDI Q8 |
2024 AUDI SQ8 |
Models from 2023
2023 AUDI E-TRON |
2023 AUDI E-TRON SPORTBACK |
Models from 2022
2022 AUDI E-TRON |
2022 AUDI E-TRON SPORTBACK |
Models from 2021
2021 AUDI E-TRON |
Models from 2019
2019 AUDI E-TRON |
Technical Service Bulletin 45 PSS ABS/ESC control unit cannot be reached "DTC U012100 ABS Control Module no communication" stored 45 24 41 2073483/1 March 28, 2024. Model(s) e-tron quattro Year VIN Range Vehicle-Specific Equipment All Not Applicable 2019 2021 - 2023 e-tron Sportback quattro 2020 - 2023 e-tron S 2022 - 2023 Q8 e-tron, Q8 etron Sportback, SQ8 e-tron, and SQ8 e-tron Sportback 2024 Condition This PSS refers only to e-tron, and Q8 e-tron variant vehicles with Software Level 321 in the ABS control unit -J104-. If the vehicle is equipped with a different version of software level, please refer to TSB 2072977. Customer states: • There is reduced braking assistance and various warning lamps appearing in the instrument cluster. Workshop findings: • ABS/ESC Control unit -J104- (Diagnostic address 0003) cannot be reached in communication. • The DTC "U012100 (Symptom Code 19875), ABS Control Module no communication" is also logged in the diagnostic address 0001. Technical Background Control unit -J104- has performed a restart. After this, the electromechanical brake servo remains on the hydraulic fallback level and no bus communication takes place. This results in driver messages from other vehicle systems being displayed. This restart only occurs in very rare exceptional cases. Production Solution © 2024 Audi of America, Inc. Internal Page 1 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. Technical Service Bulletin Not applicable. Service • Diagnose the vehicle according to the instructions listed below. • If the customer’s vehicle condition matches the condition listed in the Technical Background of this PSS, explain to the customer that a solution is expected to be available by the end of the 3rd quarter of 2024 (subject to change) and that no repairs are necessary at this point. • Do not replace any components for this condition since this will not resolve the customer’s concern. • Create a PSS record in the PSS application through the Pending Service Solutions (PSS) link in AccessAudi (under Related Links >> Service). Vehicles equipped with ABS/ESC control unit -J104- with software version SW 321. • Disconnect 12V battery from the vehicle for 5 minutes and then check the accessibility of the control unit J104- in the diagnosis. DTCs with the designation "P060A00, Control module internal processor monitoring malfunction" may be logged in the control unit as passive/intermittent. • Delete these and all other intermittent DTCs in other control units and check control unit -J104- again after switching the ignition off and back on. • When communication is correct and there are no other DTCs in address 0003, the vehicle is then ready for use again and can be released. • If additional DTCs are stored in address 0003, please follow GFF instructions. Warranty Claim Type: • 110 Up to 48 Months/50,000 Miles. • G10 for CPO Covered Vehicles – Verify Owner. • If the vehicle is outside of any warranty, this Technical Service Bulletin is informational only. Service Number: 4545 Damage Code: 0040 Labor Operations: Loosen and secure earth strap 9785 0999 10 TU Check vehicle (bus sleep mode) 0689 0199 10 TU GFF 0150 0000 Time stated on the diagnostic protocol Diagnostic Time: (Max 30 TU) Road test prior to the service procedure © 2024 Audi of America, Inc. Internal No allowance 0 TU Page 2 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. Technical Service Bulletin Road test after the service procedure Claim Comment: No allowance 0 TU As per TSB 2073483/1 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 All part and service references provided in this TSB (2073483) 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.