TSB_2079833_4 Service Bulletin/Repair Instructions

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Technical Service Bulletin

93 PPE/PPC - high-voltage electrical system fault POAOCOO in 008C
Condition
Transaction No.: 2079833/4

Release date: Jan 22, 2026
Model(s)
Year(s) VIN Range
Vehicle Specific Equipment
tron
A6 Sportback e-tron, S6

Sportback e-tron, Q6 e-tron,

Q6 Sportback e-tron, SQ6 e- 2025 All

tron, and SQ6 Sportback e-
Not applicable
REVISION HISTORY

Revision |Date Purpose

4 - Revised Warranty (Updated Claiming instructions)

3 12/19/2025 | Revised Service (Updated verbiage)
Revised Warranty (Updated Labor Operations)

2 12/04/2025 | Revised Condition (Added model table)
Revised Warranty (Added warranty table)

Customer states:
* — The red electrical system warning is shown in the instrument cluster with the message “Electrical system: fault.
Safely stop vehicle”.
* The drive system cannot be activated.
Workshop findings:
* The following event memory entry is logged in the hybrid battery management control unit (diagnostic address
008C):
- POA0COOD (symptom ID: 14746385): Pilot line for high-voltage system short circuit to earth.
Technical Background
Not applicable.
Production Solution
Not applicable.
Service
Please perform the software update described in TSB 2079690, 00 Combined software update 03.10.00/C

(28.13.01) KD2.
Warranty

Claim Type: * If the vehicle is outside of any warranty, this Technical Service Bulletin is

informational only.
Service Number: 9325
Damage Code: KDO2
Labor Operations: Software update, including connecting battery 0151 0010 See SRT with

charger associated
operations
Fixed rate for software update, including all 0151 0040 130 TU
required preliminary and follow-up work

(including bus sleep cycle, calibration drives, and

additional work)
In the case of additional attempts after flash abort | 0150 9999 50 TU

occurred, an additional lump sum of 50 time units
can be claimed per flash cancellation Per each
documented attempt
Claim Comment: As per TSB 2079833/4
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.
When performing the combined software update, time stamps are not required for billing under warranty. You are

therefore permitted to work on other vehicles at the same time. The combined software update can also be

performed by non-productive personnel.
Additional Information
All part and service references provided in this TSB (2079833) 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.
©2026 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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