Technical Service Bulletin
93 Yellow warning lamp appears and/or the vehicle does not start, DTC P0A950 and/or P0E2E00 is stored
intermittently
93 23 09 2068458/2 May 19, 2023. Supersedes Technical Service Bulletin Group 93 number 22-85 dated
November 8, 2022, for reasons listed below.
Model(s)

Year

A7 e quattro

2021 – 2022

Q5 e quattro

2020 – 2022

VIN Range

Vehicle-Specific Equipment

All

Not Applicable

Condition
REVISION HISTORY
Revision

Date

Purpose

2

-

Revised Service (Added software update for A7 and MY 2020 and 2021 Q5)
Revised Header (Added A7 and MY 2020 and 2021 Q5)

1

11/08/2022

Initial publication

Customer statement:
• The message “Electrical system: fault. Please contact workshop” (yellow warning lamp) appears in the
instrument cluster.
and/or
• The vehicle does not start.
Workshop findings:
The following DTC is intermittently stored in the hybrid battery regulation control module, J840 (address word
008C):
•

DTC P0A9500 (High Voltage Fuse) with symptom code 28730.

and/or
•

DTC P0E2E00 (Battery Charger "A" Fuse) with symptom code 28733.
Note:

According to Guided Fault Finding, the switching unit for high-voltage battery should be replaced. However,
replacing the part will not solve the problem.

Technical Background
Page 1 of 4
© 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.

Technical Service Bulletin
During particularly dynamic cornering, it is possible that in rare, isolated cases, the event memory entry given
above may be logged without good reason. This is caused by an irregularity in the diagnosis.

Production Solution
New software implemented in production.

Service
This TSB replaces Pending Service Solution (PSS) 2062953/4: 93 Yellow warning lamp appears and/or the
vehicle does not start, DTC P0A9500 is stored intermittently.
If the above condition applies to the vehicle the Hybrid Battery Management software part number and version
must be checked.
Using ODIS identify the hybrid battery regulation control module (J840) address word 008C (Figure 1).
• If the software part number is 4M4915233G with version 0371 continue with this TSB and perform SVM
update Option 1 below.
• If the software part number is not 4M4915233G with version 0371 perform SVM update Option 2 below.

Figure 1. Hybrid Battery Management software and version.
SVM Update Option 1 Instructions
1. Follow all instructions in TSB 2011732: 00 Software Version Management (SVM), operating instructions.
2. Update the Hybrid Battery Management control unit (J840) using the SVM action code as listed in the table
below, if necessary:
Note:
To prevent the high-voltage battery from charging during the software update, the high-voltage charging cable on
vehicles with high-voltage components must be unplugged BEFORE the SVM code is entered. Charging the highvoltage battery during a software update can cause damage to the high-voltage components.
Model

Old Software
Part Number

Old
Software
Version

New Software
Part Number

New Software
Version

SVM Code
Input

(or higher)

Page 2 of 4
© 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.

Technical Service Bulletin
Q5 TFSIe

4M4915233G

0371

4M4915233K

0373

8CA009

SVM Update Option 2 Instructions
Note:
For this repair option two SVM codes will need to be run and they must be in the order provided below:
1. Follow all instructions in TSB 2011732: 00 Software Version Management (SVM), operating instructions.
2. Update the Hybrid Battery Management control unit (J840), the Battery Junction Box (SX6) and the Cell
Module Control units (CMC) using the SVM action code as listed in the table below, if necessary:
Note:
To prevent the high-voltage battery from charging during the software update, the high-voltage charging cable on
vehicles with high-voltage components must be unplugged BEFORE the SVM code is entered. Charging the highvoltage battery during a software update can cause damage to the high-voltage components.
Model

Q5 TFSIe

A7 TFSIe

Old Software Old
Part Number Software
Version
4M0915233R

0273
0274

New Software
Part Number

New Software SVM Code Input
Version
(or higher)

4M0915233C

0278

4K0915233

0275

4K0915233A

0278

4M4915233B

0371

4M4915233B

0373

8CA011
+
8CA011KONF

Warranty
Claim Type:

• 110 up to 48 Months/50,000 Miles.
• G10 for CPO Covered Vehicles – Verify Owner.
• If the vehicle is outside any warranty, this Technical Service Bulletin is informational
only.

Service Number:

9327

Damage Code:

0040

Labor Operations:

Software update

0151 0000

Time stated on
diagnostic
protocol (Max 80
TU)

Page 3 of 4
© 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.

Technical Service Bulletin
Diagnostic Time:

GFF

No allowance

0 TU

Road test prior to service procedure

No allowance

0 TU

Road test after service procedure

No allowance

0 TU

Claim Comment:
As per TSB 2068458/2
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 (2068458) 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.

Page 4 of 4
© 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.