Technical Service Bulletin

931D UPDATE
Software Update for High-Voltage Battery Diagnostic
Software – (NVLW)
Applicable Vehicles

Country

Beginning Model Year

Ending Model Year

Vehicle

Vehicle Count

USA
USA
CAN
CAN

2023
2023
2024
2024

2024
2024
2024
2024

E-TRON GT
RS E-TRON GT
E-TRON GT
RS E-TRON GT

2,039
1,196
40
2

Revision History
Revision

Date

Purpose

1

07/15/2025

Original publication

Technical Background
Criteria

Technical Background

01

As part of our quality assurance process, we have developed software for diagnosing and monitoring the
high-voltage battery; this software is now available. Potential irregularities in the high-voltage battery are
therefore detected and are indicated by a warning lamp in the instrument cluster.

Remedy
Criteria
01

Remedy
The diagnostic software of the high-voltage battery must be updated on affected vehicles.

This Update is in effect until removed.
Vehicle must meet all of the following criteria:
• Procedure is valid only for vehicles that show the 931D code in the ELSA Campaign/Action Information screen
on the day of repair.
• Vehicle must be within the New Vehicle Limited Warranty.
• Procedure must be performed within the allotted time frame stated in this Technical Service Bulletin.
• Procedure must be performed on applicable vehicles in dealer inventory prior to sale.

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Audi dealer. 2025 Audi of America, Inc and Audi Canada All Rights Reserved.
931D Page 1 of 7

Technical Service Bulletin

931D UPDATE
Software Update for High-Voltage Battery Diagnostic
Software – (NVLW)

Service
NOTE:
•

ELSA is the only valid inquiry/verification source. Check ELSA on the day this vehicle UPDATE will be
performed to verify vehicle eligibility for the UPDATE. Status must show “open”. Attach an ELSA printout
showing the “open” status to the repair order.

•

If this UPDATE appears to have already been performed but the code still shows open in ELSA, contact
Warranty before proceeding further. Another dealer may have recently performed this UPDATE but not
yet entered a claim for it in the system.

•

ELSA may also show additional open action(s); if so, inform your customer - this work can be done while
the vehicle is in for this UPDATE.

•

Contact the Warranty Helpline (U.S.) or the Warranty Campaign Specialist (Canada) if you have any
questions.

•

Enter the VIN in ELSA and proceed to the
“Campaign/Action” screen.

TIP
On the date of repair, print this screen and keep a
copy with the repair order.
•

Confirm the Campaign/Action is open . If the status is closed, no further work is
required.

•

Note the Applicable Criteria ID for
use in determining the correct work to be done
and corresponding parts associated.
CRITICAL REPAIR STEP

STOP!
All campaigns/actions with a repair available must
be performed in order of the Start date .
The oldest should be performed first (unless
otherwise noted in the repair instructions).

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Audi dealer. 2025 Audi of America, Inc and Audi Canada All Rights Reserved.
931D Page 2 of 7

Technical Service Bulletin

931D UPDATE
Software Update for High-Voltage Battery Diagnostic
Software – (NVLW)
SVM Update Instructions
NOTE
Prior to launching the VAS Diagnostic Tester and starting an update, ensure the following conditions are met;
The ODIS software is completely up to date.
•

Refer to the “Current ODIS Service Version” circular found in Elsa2Go Service References.

The battery charger is connected to the vehicle battery and remains connected for the duration of the
software update.
•

Battery voltage must remain above 14 volts for the duration of the software update. Failure to do
so may cause the update to fail, which could result in damage to the control module. Control
modules damaged by insufficient voltage will not be covered.

The screen saver and power saving settings are off.
•

Failure to do so may result in the tester entering power save mode during the software update,
which could result in damage to the control module.

The VAS Diagnostic Tester is plugged in using the supplied power adapters.
•

Under no circumstances should the tester be used on battery power alone during the software
update. Failure to do so may result in the tester powering off during the update, which could result
in damage to the control module.

Flash process through “Audi Flashing” not Guided Fault Finding (GFF).
•

DO NOT USE Guided Fault Finding (GFF) to perform this flash. Using GFF will cause the flash
to take longer. Requests for additional time will not be considered.

The VAS Diagnostics Interface MUST ONLY be connected to the tester with a USB cable.
•

Performing a software update using a Bluetooth or Wi-Fi connection increases the risk of losing
connection during the update, which could result in damage to the control module.
It also greatly increases the time required to perform the update. Requests for additional time or
parts will be denied if the GFF log shows the update was performed using Bluetooth or WiFi.

TIP
As a best practice, customer presets should be documented prior to performing any update in the event these
settings are lost during the update.

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Audi dealer. 2025 Audi of America, Inc and Audi Canada All Rights Reserved.
931D Page 3 of 7

Technical Service Bulletin

931D UPDATE
Software Update for High-Voltage Battery Diagnostic
Software – (NVLW)
NOTE
•

All campaign software updates must be completed during a single, standalone ODIS Diagnostic Session.
You must fully complete this campaign and send all logs before beginning any other campaigns or
operations.

•

If there are any ODIS “Hot-Fix” patches installed, they must be removed from the scan tool before
beginning this operation. ODIS “Hot-Fix” patches may affect the update process.

WARNING
Radiator Fan(s) may cycle ON high speed during the Update Process! There is a serious risk that personal injury
may result if contact is made with spinning fan blades. Keep hands and all objects away from Radiator Fan(s)
during Update Process!
IMPORTANT
To Update-Programming using SVM, review and follow instructions in Technical Bulletin 2011732: Software
Version Management (SVM) Operating Instructions for the US, or 2037026: Working with the Software Version
Management (SVM) for Canada.
The SVM Process must be completed in its entirety so the database receives the update confirmation response.
A warranty claim may not be reimbursed if there is no confirmation response to support the claim.

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Audi dealer. 2025 Audi of America, Inc and Audi Canada All Rights Reserved.
931D Page 4 of 7

Technical Service Bulletin

931D UPDATE
Software Update for High-Voltage Battery Diagnostic
Software – (NVLW)
•

Switch off all consumers, air conditioning, heater blower motor, lights, heated seats, etc.

•

Connect battery charger capable of maintaining 100 A and ensure charging voltage is above 14V.

•

Ensure the latest version of ODIS is downloaded.

•

Ensure diagnostic head is connected to ODIS tester via USB cable.

•

Move selector lever to P.

•

Open the hood.

•

Disconnect the High-Voltage System Maintenance Connector - TW -.

•

Ensure the hood remains open during the flash.

•

Use operating mode, FLASH.

•

Select “SVM – Code Input”.

•

Enter SVM code 93SWA799 and follow the on-screen prompts.

•

Reconnect High-Voltage System Maintenance Connector - TW -.

•

When exiting the FLASH program, ensure the diagnostic log is sent to GFF
Paperless.

IMPORTANT
If the software update fails for any reason, ODIS feedback must be sent prior to further diagnosis. This ensures
the failure/error is reported. Failure to do so may result in non-payment of consequential requests for additional
time or parts.

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Audi dealer. 2025 Audi of America, Inc and Audi Canada All Rights Reserved.
931D Page 5 of 7

Technical Service Bulletin

931D UPDATE
Software Update for High-Voltage Battery Diagnostic
Software – (NVLW)

Warranty
Claim Entry Instructions
The labor times listed here may differ from the labor operations and labor times listed in ELSA.
After campaign has been completed, enter claim as soon as possible to help prevent work from being duplicated
elsewhere. Attach the Elsa screen print showing action open on the day of repair to the repair order.
If a customer declines campaign work, refer to the “Customer Declines Campaign/Update Repair” section in the
Campaign/Update Policy and Procedures Manual.
Service Number

931D

Damage Code

0099

Parts Vendor Code
Claim Type

002
Sold vehicle: 7 10
Unsold vehicle: 7 90

Causal Indicator
Vehicle Wash/Loaner
Criteria I.D.

Mark labor as causal
Do not claim wash/loaner under this action
01
LABOR
Labor Op

Time Units

Description

0151 00 10

SEE ELSA

Software update
(setup + battery charger)

0151 00 60

Time stated on
diagnostic protocol

Software update
(GFF Operations)

Additional Actions Some of the affected vehicles may be involved in additional Actions. Please check your
ELSA Campaign/Action Information screen so that any additional required work can be
done simultaneously.

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Audi dealer. 2025 Audi of America, Inc and Audi Canada All Rights Reserved.
931D Page 6 of 7

Technical Service Bulletin

931D UPDATE
Software Update for High-Voltage Battery Diagnostic
Software – (NVLW)
Verifying Vehicle
Eligibility

To verify vehicle eligibility for this Update, always check the ELSA Campaign/Action
Information screen. The ELSA system is the only binding inquiry and verification system;
other systems are not valid and may result in non-payment of a claim.

Help for Claim
Entry

For questions regarding claim entry, contact Audi Warranty.

Required
Customer
Notification

Inform your customer in writing by recording on the Repair Order any and all work that
was conducted on the vehicle, including any and all updates completed under this Update.

Required Special Tools
Battery Tester/Charger
-VAS5908(or equivalent charger
with a current rating of at
least 100A)

Diagnostic Tester
-VAS6150X/VAS6160X(or equivalent)

Additional Information
All parts and service references provided in this Update are subject to change and/or removal. Always check
ELSA for the most current version of this document.

The repair information in this document is intended for use only by skilled technicians who have the proper tools, equipment and training to correctly and safely maintain your vehicle. These
procedures are not intended to be attempted by “do-it-yourselfers,” and you should not assume this document applies to your vehicle, or that your vehicle has the condition described. To
determine whether this information applies, contact an authorized Audi dealer. 2025 Audi of America, Inc and Audi Canada All Rights Reserved.
931D Page 7 of 7