NHTSA ID Number: 11021638
Manufacturer Communication Number: TSTR2501ak
TSB/Document Date: 2025-08-06
Summary
Information on PIWIS tester update 43.500.040. PIWIS tester updates applies to all Porsche
models that have an OBD2 port.
Special Tools and Equipment Information
TSTR2501ak USA Only
Porsche Tester IV Online Update 43.500.040
Vehicle Type:
All
Subject:
Porsche Tester IV Online Update 43.500.040
Information:
Important!
This software is only intended for use on Porsche Tester IV.
Note!
Regarding handling of the proprietary Porsche Tester IV software, we refer to Article 6 - “Transfer for use and assigned
of rights of use” - of the Porsche PT4G Purchase and License Agreement, in particular the ban on duplicating the software or making it available to third parties.
Caution!
Download must not be interrupted!
Important!
During the entire update process, the Porsche Tester IV must not be disconnected from the power supply!
Installation of the software update via Online Update
AfterSales
Jul 21, 2025
Page 1 of 5
Special Tools and Equipment Information
TSTR2501ak USA Only
Porsche Tester IV Online Update 43.500.040
Porsche Tester IV Online Update
Porsche Tester IV
Designation:
Porsche Tester IV Online Update 43.500.040
Part Number:
N/A
Tool Number:
N/A
Use:
Update of Porsche Tester IV
Price:
Free of charge, included in the annual usage fee for Porsche
Tester licenses.
AfterSales
Jul 21, 2025
Page 2 of 5
Special Tools and Equipment Information
TSTR2501ak USA Only
Porsche Tester IV Online Update 43.500.040
Work
Procedure:
Installation of the software update via Online Update
Important!
The download process must be started by user once an online connection is available.
Select “Update” in the “Tools” menu to view the current update availability status. If an update is shown, select “Start
Download”. Installation of the releases must be started manually after the download has completed by pressing the
“Start installation” button. Prerequisite: PPN Porsche Tester License registration must have been carried out successfully.
1.
2.
Connect Porsche Tester IV to an external power supply and start it.
Start installation using menu item “Tools - Update” then select “Start Installation” on the Porsche Tester 4
user interface.
3.
4.
After successful installation, Porsche Tester IV will need to restart.
After the restart the update has now been completed.
AfterSales
Jul 21, 2025
Page 3 of 5
Special Tools and Equipment Information
TSTR2501ak USA Only
Porsche Tester IV Online Update 43.500.040
Porsche Tester IV Update Release History
Release
Date
43.300.030
4/14/2025
43.300.040
4/23/2025
43.400.000
4/28/2025
43.400.010 & .011
5/5/2025
43.400.020
5/12/2025
43.400.025
5/15/2025
43.400.030
5/19/2025
43.400.040
5/27/2025
43.400.050 & .051
6/11/2025
43.400.060
6/16/2025
43.400.061
6/18/2025
43.500.000
43.500.005
6/23/2025
6/26/2025
6/30/2025
43.500.010 & .011
43.500.020 & .021
43.500.030
7/7/2025
7/14/2025
43.500.035
7/16/2025
43.500.040
7/21/2025
Further information:
•
PT4G testers can only be updated from the current software level.
•
PT4G testers cannot be backdated or targeted for a specific older software level.
•
If a software restore is to be performed, the tester will install the most current software release available.
•
When a new update is installed, only the objects that have been added/changed are installed to save time
during the update process.
Online update, Fazit, PPN access and VAL data transfer:
The “Online Update”, “Fazit Access”, “PPN Access” and “VAL Data Return” functions can only be run if the network
settings and any proxy settings that are used were set correctly and if a valid PT4G device certificate was created
successfully for the Porsche Tester 4 being used for access. The user must have PPN access and must be allocated to
the device certificate.
AfterSales
Jul 21, 2025
Page 4 of 5
Special Tools and Equipment Information
TSTR2501ak USA Only
Porsche Tester IV Online Update 43.500.040
General
Information:
Ordering process:
Tools identified with a prefix of VAS, VAG and T:
Place orders via porsche.snapon.com.
Tools with a prefix of 000 721, 918 721, PNA or P:
Place orders via POLARIS (PPL).
Diagnostic Equipment:
Open a PRMS ticket. Technical Support >> Tester Support
Special Tool Support:
For questions related to VAS, VAG, and “T” tools:
Contact SBS customer care at 1-855-895-2013 or [email protected].
For Polaris numbers 000.721, 918.721, PNA and “P” tools:
Open a PRMS ticket. Technical Support >> Special Tools
Diagnostic Equipment:
Open a PRMS ticket. Technical Support >> Tester Support
Workshop Equipment Classification
Servicing and maintenance
Replacement of units and assemblies
Disassembly of units and assemblies
Rental
Body & Paint
High-voltage
© 2025 Porsche Cars North America, Inc.
AfterSales
Jul 21, 2025
Page 5 of 5
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TSB/Document ID: TSTR2501ak
Replacement Service Bulletin Number:
MFR Communication Date: 2025-07-21
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: UNKNOWN OR OTHER
MFR Component System:
MFR Component Subsystem:
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