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NHTSA ID Number: 10154064

Manufacturer Communication Number: 23Z3

TSB/Document Date: 2019-03-04


Summary

Emissions Service Action 23Z3 / Improved Post-AEM Engine Control Module Software (AEM-C)


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.
Proceed to Section B.

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 VolkswageneBay logo dealer. 2018 VolkswageneBay logo Group of America, Inc. All Rights Reserved.
December 2018

TDI / AEM EMISSIONS SERVICE ACTION

23Z3 Page 5 of 10

Section B – Repair Procedure
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 “Alerts” section on ServiceNet home page for the current ODIS version.

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

Battery voltage must remain above 12.5 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.

If using a Bluetooth transmitter head, it is connected to the tester with a USB cable.

Performing a software update using a Bluetooth 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.

The Bluetooth function of the scan tool is physically switched off .

VAS 6150 & VAS 6150A

VAS 6150B

VAS 6150C/D

(Front panel behind handle)

(Right side behind WIRELESS door)

(Left side behind SC/EX door)

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 VolkswageneBay logo dealer. 2018 VolkswageneBay logo Group of America, Inc. All Rights Reserved.
December 2018

TDI / AEM EMISSIONS SERVICE ACTION

23Z3 Page 6 of 10

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!
TIP
To Update-Programming using SVM, review and follow instructions in Technical Bulletin 2014603: Software
Version Management (SVM) Operating Instructions.
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.

Open the hood.

Open the battery cover.

Switch the ignition on.

Apply the parking brake.

Switch off all consumers (headlights, heated
seats, climate control, radio, etc.).

Connect the VAS6150X/VAS6160X Diagnostic
Tester to the vehicle.

Start the ODIS program.

Attach the GRX3000VAS Tester/Charger (or
equivalent) to the vehicle battery.

Press the unlock door button , and turn
the hazards on.

CAUTION
The procedure may cancel itself if the hazard warning
lights are not switched on. The hazard warning lights
prevent the system from switching to bus sleep mode
during the update.

Confirm that scan tool is communicating with the
diagnostic head by USB .
o

If the Bluetooth symbol is shown then disconnect the diagnostic
head from the vehicle and reconnect the
USB cable to the diagnostic head and
then reattach to the vehicle.

Upon ODIS startup, verify the “Diagnosis”
operating mode is selected .

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 VolkswageneBay logo dealer. 2018 VolkswageneBay logo Group of America, Inc. All Rights Reserved.
December 2018

TDI / AEM EMISSIONS SERVICE ACTION

23Z3 Page 7 of 10

Once the GFF scan is complete, select “Special
functions” , then “Adapting software”
, then select “Perform test” .

Select option 2 to “Update software via action
code”.

NOTE
Using Bluetooth for this action is PROHIBITED!
Damage caused to electronic components (e.g. ECM,
TCM, etc.) during the SVM flash process is not
covered.

Enter the corrective action code (SVM code) as
listed below.

SVM code

41A7

Select “Accept” and follow the on screen
prompts.

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 VolkswageneBay logo dealer. 2018 VolkswageneBay logo Group of America, Inc. All Rights Reserved.
December 2018

TDI / AEM EMISSIONS SERVICE ACTION

23Z3 Page 8 of 10

During the flash, this screen appears when each
of the following operations are performed:
o

Flashing and Parameterization.

o

Adaptation/Calibration.

o

Coding

User input
operations.

Select Complete/Continue after each
operation is completed.

When the SVM update is complete a
confirmation message is displayed .

Select “Complete/Continue” .

is

not

possible

during

these

NOTE

It is IMPERATIVE that ALL of the ignition cycle
on/off delay requests are fulfilled in their
entirety during this flash process .

Failing to wait for the ignition on/off timing cycle
to complete (progress bar and countdown
timer ) before cycling the ignition
on/off MAY damage a control module.

Damage to control modules as a result of
failing to wait the specified time displayed by
the progress bar and countdown timer
are NOT covered under this action.

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 VolkswageneBay logo dealer. 2018 VolkswageneBay logo Group of America, Inc. All Rights Reserved.
December 2018

TDI / AEM EMISSIONS SERVICE ACTION

23Z3 Page 9 of 10

After the software update is completed and
before sending the GFF Log Online:

o

Select the “Control Module” tab.

o

Scroll down and right click on the module
that was updated (01XX).

o

Select “Identify Control Module”
and select the ECM.

Exit GFF and send diagnostic protocol online
when prompted.
NOTE

Static communication faults may store in various
control modules during the flash. These faults can
only be cleared by following one of these steps:

Drive the vehicle a short distance (around the
parking lot, for example).

After selecting “Yes”, turn the ignition off for
30 seconds, turn it back on and repeat the
GFF exit program.

Clear faults using OBD (an additional key
cycle may also be required).

Release the parking brake.

Turn off the hazard lamps.

Disconnect the VAS tester.

Switch off and disconnect the battery charger.

Reinstall the battery cover.

Proceed to Section C.

Section C – Campaign Completion Label

Fill out and affix Campaign Completion Label,
part number CAMP 010 000, next to the vehicle
emission control information label.
TIP

Ensure Campaign Completion Label does not cover
any existing label(s).

ALL WORK IS COMPLETE.

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 VolkswageneBay logo dealer. 2018 VolkswageneBay logo Group of America, Inc. All Rights Reserved.
December 2018

TDI / AEM EMISSIONS SERVICE ACTION

23Z3 Page 10 of 10

12

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TSB/Document ID: 23Z3

Replacement Service Bulletin Number:

MFR Communication Date: 2018-12-20

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: ELECTRICAL SYSTEM

MFR Component System:

MFR Component Subsystem:


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