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Technical Service Bulletin Transaction No.: 2063427/13
93 HV battery charger control module cannot be started, or reports under wrong Release date: Apr 9, 2026
diagnostic address after being replaced
Condition
modes) | Years) | VIN Range Vehicle Specific Equipment
2019
e-tron
2021 — 2023
e-tron Sportback 2020 — 2023 All Not applicable

Q8 e-tron, Q8 Sportback

e-tron, SQ8 e-tron, and 2024

SQ8 Sportback e-tron
REVISION HISTORY
Revision [bate foupose
ee Revised Service (Updated measure)
10/1/2025 | Revised Service (Updated measure)
04/28/2025 | Revised Service (Updated measure)
Customer states:
+ The high-voltage battery charger control module, J1050 (address word 00C6) must be replaced due to a fault.
Workshop findings:
+ After the vehicle’s high-voltage battery charger control module, J1050, is replaced, the new unit no longer

reports in the diagnostic scan tool under address word 00C6 but instead reports under address word 8113.

Or
+ High-voltage system cannot be restarted (event memories entered in address 0019).
Technical Background
The replacement part needs to have the diagnostic address/address word changed.
Production Solution
Not applicable.
Service
Process for software version 3112 / 3115 or 3119 (=UNECE)

* 0019 - Technical product information.

+ J533 - Technical Product information 2063053.

If the high-voltage system still cannot be activated, perform a bus sleep cycle and try activating it again, if the
complaint still has not been resolved, please create an inquiry with the Technical Assistance Center (TAC).
Please ensure that a current diagnostic log is available on GFF paperless and the following measured
values from address 00C6/8113 have been read out:

+ PRX voltage at charging socket A 5413 (decimal)/0x1525 (hexadecimal)

+ PRX voltage at charging socket B 5417 (decimal)/0x1529 (hexadecimal)

Process for all other software versions:

If the concern occurs after the component is replaced, proceed as follows using ODIS:

If the vehicle has PR number KB4 (onboard charging unit up to 22kW), disconnect charging unit 2 (AXS) first.
Select the self-test button and then select the following path:

+ 8113 — High-Voltage Battery Charger Control Module 2 -J1239-.

+ 8113 — High-Voltage Battery Charger Control Module 2, functions.

+ 8113 —- Change diagnostic address from 8113 to 00C6.

If the high-voltage system cannot be activated again, proceed as follows:

+ End Guided Fault Finding and if the DTCs are static, start Guide Fault Finding again.

+ Work through the DTC entries from gateway 0019 according to the test plan.

If the high-voltage system still cannot be activated, update the electrical system configuration as follows:
Press “Select self-test” and then select the following path:

Updating electrical system configuration

+ 0019 - Data Bus On Board Diagnostic Interface -J533-.

* 0019 - Technical product information.

+ J533 - Technical Product information 2063053.
Warranty

Claim Type: + Ifthe vehicle is outside of any warranty, this Technical Service Bulletin is

informational only.

Damage Code: 0039
Labor Operations: Software version 3112 or 3115 or 3119

Replace high-voltage |9352 5550 See SRT with

charging unit associated
operations

Loosen and secure 9785 0950 See SRT with

earth strap associated
operations

GFF 0150 0060 Labor
according to
the diagnostic
log

All other software versions with charging unit 2 (AX5)

Loosen and secure 9352 0999 50 TU

high-voltage charging

unit

GFF 0150 0060 Labor
according to
the diagnostic
log

All other software versions without charging unit 2 (AX5)

GFF 0150 0010 See SRT with
associated
operations

GFF 0150 0060 Labor
according to
the diagnostic
log

Claim Comment: As per TSB 2063427/12
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.

Please note the information on predecessors and items that are included and excluded int eh repair operations as
well as any associated tasks.

Required Parts and Tools

Tool Number Tool Description

VAS 1594 Wire harness repair set

VAS 6160/VAS VAS tester with the current version of ODIS (Windows 10)

6150
Additional Information

All part and service references provided in this TSB (2063427) 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.

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