01 PSS Engine: Engine Control Unit - Drive System Fault - DTC P065C00, Symptom 36565 - 4 CYL, 2.0 LTR. TFSI (GROUP 01, NO. 25-58)

01 PSS ENGINE: ENGINE CONTROL UNIT - DRIVE SYSTEM FAULT - DTC P065C00, SYMPTOM 36565 - 4 CYL, 2.0 LTR. TFSI

TECHNICAL SERVICE BULLETIN

SERVICE INFORMATION

01 25 58 2077630/1 April 16, 2025.

Model(s)	Year	VIN Range	Vehicle-Specific Equipment
A4, and S5 Sportback	2021 - 2025	All	4 cyl, 2.0 ltr. TFSI

CONDITION

Customer states: 

• The vehicle has reduced power.
• The message "Drive system fault" appears in the driver information system.

Workshop findings: 

The following DTC is stored in the engine control module, -J623- (address word 0001)

• P065C00  "Generator, mechanical malfunction (symptom 36565)."

AND 

• P0A0F00  "Engine failed to start (symptom 379300)" are logged in the event memory engine control unit. "

TECHNICAL BACKGROUND 1

Software issue in the engine control unit

PRODUCTION SOLUTION

This bulletin will be updated when more information is available. A solution is currently under development.

SERVICE

1. Explain to the customer that a solution is expected to be available by the end of the 3rd quarter of 2025 (subject to change) and that no repairs are necessary at this point.
2. Do not replace any components for this condition since this will not resolve the customer's concern.
3. Create a PSS record in the PSS application through the Pending Service Solutions (PSS) link in AccessAudi (under Related Links >> Service  ).

WARRANTY

Claim Type:	If the vehicle is outside of any warranty, this Technical Service Bulletin is informational only.
Service Number:	2470
Damage Code:	0039
Labor Operations:	Software update	0151 0010	See SRT for associated operations
	Software update	0151 0060	Time stated on the diagnostic protocol
Claim Comment:	As per TSB 2077630/1

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 (2077630  ) 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.