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Diagnostic trouble codes
Customer states:
Workshop findings: The following DTC and symptom code may be stored in the engine control module -J623-, (address word 0001):
The valve gear of EA855evo is of 2-stage design and is located on the gearbox side. In primary drive, the oil pump and the intermediate shaft are driven by the crankshaft via a toothed chain. The intermediate shaft is an assembly part. It drives the camshafts as well as the high-pressure pump for the fuel system and the vacuum pump. In secondary drive, the camshafts are driven by the intermediate gear via a roller chain. For detailed information, refer to SSP 661. Not applicable. Always use DoIP when flashing a control module via ODIS in supported vehicles.To activate DoIP, selectAdministration>>General>>GFF Process>>DoIP communication>>Only allow DoIP communication.This setting will automatically reset when the diagnostic session has ended.You can tell if DoIP is active by observing a red LED on the VAS 6154(A). Follow all instructions in TSB 2011732:00 Software Version Management (SVM), operating instructions. Update the engine control module (J623) using the SVM action code as listed in the table below, if necessary:
Please update the engine control unit and reassess the customer complaint. The engine control unit software must be updated on this vehicle. Inform the customer about the software update and ask them whether the engine control unit has been altered by chip tuning. Explain to the customer that updating the engine control unit software renders the chip tuning ineffective. In certain circumstances, the engine control unit may even be damaged by the software update. Ask the customer to clarify with the tuning company in advance whether a software update is possible. Damage to the engine control unit resulting from chip tuning cannot be billed to AUDI AG under warranty. Please refer the customer to the Warranty and Maintenance booklet to learn more about how chip tuning can impact warranty coverage. Explain to the customer that neither AUDI AG nor your company can be held responsible for damage caused by the software update or for damage that occurs as the result of not having the update performed. Make a note to this effect on the order before it is signed by the customer. Include this information in the customer file.
All warranty claims submitted for payment must be in accordance with theAudi Warranty Policies and Procedures Manual. Claims are subject to review or audit by Audi Warranty. All part and service references provided in this TSB (2077641) 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. ©2025 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. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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