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Technical Service Bulletin

Topic 90 Software update: gateway - various warning lamps for different vehicle systems light up in
PI instrument cluster

United States 444 Volkswagen of America, Inc. (6444)

No.

[Status | Released for publishing

Release date | May 12, 2025

New customer code

Object of complaint Complaint type [Position]

information, navigation, communication, entertainment -> malfunction display functionality ->

symbols -> transmission malfunction display activates

information, navigation, communication, entertainment -> malfunction display functionality ->

symbols -> driver assistance malfunction display activates

information, navigation, communication, entertainment -> malfunction display functionality ->

symbols -> engine start malfunction indicator activates

information, navigation, communication, entertainment -> malfunction display functionality ->

symbols -> interference display for emergency call service activates

information, navigation, communication, entertainment -> malfunction display functionality ->

symbols -> shock absorber control system malfunction display activates

information, navigation, communication, entertainment -> malfunction display functionality ->

symbols -> ABS malfunction display activates

information, navigation, communication, entertainment -> malfunction display functionality ->

symbols -> power steering malfunction display activates

New workshop code

Object of complaint Complaint type [Position]

power, vehicle electrical system, data transfer -> databus control modules, services -> with fault

systems -> databus on board diagnostic interface stored in the DTC memory

power, vehicle electrical system, data transfer -> databus control modules, services ->

systems -> databus on board diagnostic interface communication malfunction

power, vehicle electrical system, data transfer -> databus control modules, services ->

systems -> databus on board diagnostic interface communication interrupted

power, vehicle electrical system, data transfer -> databus functionality -> no function

systems -> databus on board diagnostic interface

power, vehicle electrical system, data transfer -> databus functionality -> operation sequence

systems -> databus on board diagnostic interface incorrect

Vehicle data

Sales types
Final drive code
aoala [CC
aosfa [FO
jax fafa ff
jax faosfa |
jaw fafa ff
Jame jaozsfa | ft
goala [fe
aosfa [CC
aoala [FC
aosla [CC
[Fox jaozgfa |
[rev faosfa [|
[rev aoa ff
[re jaosfa ft
ola [ft
osfa [CC
ola [
aosla [FCC
Control units
number version number version
9019 - Data Bus OBD 4KL.907.468.N 3039 4KL.907.468.L Hoe
Interface
9019 - Data Bus OBD 4KE.907.468.N 3039 4KE.907.468.L Hoe
Interface
0019 - Data Bus OBD
0019 - Data Bus OBD
80C.907.468.N 3039 80C.907.468.L
0019 - Data Bus OBD 8W0.907.468.N 3039 8W0.907.468.L HO6
Interface
9019 - Data Bus OBD 4KL.907.468.Q 0042 4KL.907.468.L Hoe
Interface
9019 - Data Bus OBD 4KE.907.468.Q 0042 4KE.907.468.L Hoe
Interface
0019 - Data Bus OBD 4KR.907.468.Q 0042 4KR.907.468.L Hoe
Interface
9019 - Data Bus OBD 80C.907.468.Q 0042 80C.907.468,L HO6
Interface
0019 - Data Bus OBD

Documents

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Technical Service Bulletin Transaction No.: 2077819/1
90 Software update: gateway - various warning lamps for different vehicle systems light Release date: May 12, 2025
up in instrument cluster

Condition

Customer states:

Various warning lamps for different vehicle systems appear after opening and starting the vehicle or while driving.
For example:

+ — Vehicle lights: fault.

+ Emergency call function: fault.

+ Start/stop system: fault.; Stabilization control (ESC): fault.

etc. are displayed in the driver information system.

Various warning lamps are active, and the side windows may lower automatically.

Workshop findings:

Various DTC entries on different bus systems are logged (intermittent) in diagnosis address 0019 due to a single
occurrence of the event memory entry.

Intermittent faults in CAN and FlexRay communication are logged in some control units and the diagnostic interface.
All symptoms and DTC entries indicate a temporary failure of the gateway J533.

As the ODIS DTC entries, and warning messages can vary in suspected cases, no fault codes can be specified.
When classifying the issue, the important factor is the identical time stamp in the standard ambient conditions of the
respective event memory entry in DA0019. Most of these are communication, single-wire and signal faults (e.g.
implausible signal; CAN single wire mode; no communication or function limitation due to missing message).

The complaint cannot be reproduced in the workshop. All systems continue to function without restrictions.
Technical Background

Under certain circumstances, an online data campaign may be causing a sporadic reset of data bus diagnostic
interface J533. This campaign already ended in week 38/2024. However, individual vehicles with this complaint still
come up.

The data bus diagnostic interface remains stuck for approx. 30 seconds and then fixes itself automatically with an
automatic reset.

Production Solution

Robustness measure in the software for the data bus diagnostic interface (diagnostic address 0019) as of week
25/2025 (MY26).

Service

This TSB replaces TSB 2075405: 90 Reporting Obligation pre repair - Various Warning Messages w/ Faults stored
for CAN bus Communication.

Software update to SW 0043 for the diagnostic interface control unit (DA0019).

Applies to vehicles with high-voltage components:

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.
Please note that charging the high-voltage battery during a software update can cause damage to the high-voltage
components.
The software for the diagnostic interface (DA0019) must be updated on this vehicle. Please observe the
information and instructions under “Customer information” with regard to this.
Follow all instructions in TSB 2011732: 00 Software Version Management (SVM), operating instructions.
Update the Data Bus On Board Diagnostic interface, J533 (0019) using the SVM action code as listed below if
necessary:
Please update the data bus diagnostic interface J533 (diagnostic address 0019) via SVM. To enter the SVM code,
use “Flash” mode on the ODIS tester.
Please use the function Authorized Multiple Code Entry. The new test program for software updates is included in
ODIS software (available as of 16.04.2025).
Note: The vehicle uses acoustic signals and flashing lights to indicate when user input is required during and at the
end of the test program.
Use the function “SVM — Multiple authorized code inputs’ in “Flash” mode.
CAUTION: the following SVM code must be input exactly as written below (incl. comma and without space; copying
and pasting is recommended):
ZGDOIP,19A029A,19A029B
Follow the instructions on the ODIS tester.
After the update has been completed, it is absolutely necessary to unplug the diagnostic connector and the charger
from the vehicle.
Now start the engine and let it run for a minute, then lock the vehicle and wait for five minutes.
Once you have done this, you can finish the diagnostic procedure via ODIS so that the event memory entries
created during the flashing procedure can be deleted.
Warranty
Claim Type: + Ifthe vehicle is outside of any warranty, this Technical Service Bulletin is
informational only.
Damage Code: 0039
Labor Operations: Software Update 0151 0010 See SRT with
associated
operations
Software Update 0151 0060 Time stated on the
diagnostic protocol
Claim Comment: As per TSB 2077819/1

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

The control unit software must be updated on this vehicle, or the software must be updated on several control units
in this vehicle to ensure they function correctly in conjunction with the other control units in the vehicle. Inform the
customer about the software update and ask them whether the software has been modified, or “tuned” (e.g. chip
tuning or retrofitting involving modifications to a third party). Explain to the customer that updating software renders
the modification(s) ineffective. In certain circumstances, the control unit may even be damaged by third party
software update(s). Please inform the customer that this software update may neutralize previous modification(s) to
the vehicle’s software performed by either the customer or other third parties.

Damage to the control unit(s) resulting from chip tuning is not covered under warranty. Please refer the customer to
the Warranty and Maintenance booklet to learn more about how modification(s) can impact warranty coverage.
Explain to the customer that if they “tuned” their vehicle, they will be responsible for any damage caused by the
software update or for damage that occurs as the result of not having the update performed. If the customer
declines the software update, please inform them that this could lead to issues or restrictions with the use of the
vehicle or individual components. Make a note to this effect on the order before it is signed by the customer. Include
this information in the customer file.

All part and service references provided in this TSB (2077819) 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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