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Volkswagen protection of car diagnosis: Difference between revisions

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==Origin of SFD==
==Origin of SFD==
SFD(2) stems from UNECE regulations (Addendum 154 – UN Regulation No. 155, Addendum 155 – UN Regulation No. 156) which were adopted by the UNECE World Forum for Harmonization of Vehicle Regulations on June 24, 2020.<ref name=":1">{{Cite web |author=Sekurit Service |date=31 May 2025 |title=Erweiterter CYBER-SECURITY-SCHUTZ (SFD2/UNECE) bei VAG-Fahrzeugen ab Modelljahr 2024 |url=https://www.sekurit-service.com/medias/Technical-Bulletin-New-CSM-Funktion-at-VAG-vehicles-DE.pdf?context=bWFzdGVyfGltYWdlc3wxNjYyMTZ8YXBwbGljYXRpb24vcGRmfGFETmlMMmhsT0M4NU5UYzBORFkwTmpFNE5USTJMMVJsWTJodWFXTmhiQ0JDZFd4c1pYUnBiaUJPWlhjZ1ExTk5JRVoxYm10MGFXOXVJR0YwSUZaQlJ5QjJaV2hwWTJ4bGMxOUVSUzV3WkdZfDAyNmI1YjU0YjYyYzdjODA3ZTg3MTkzMDFjMDBjZjZhNTcyYjhmNjcwY2U2NmVlMTYyMGI3MzY2ZThlMTQ2MDg&attachment=true |url-status=live |access-date=30 May 2025 |language=de}}</ref>  
SFD(2) stems from UNECE regulations (Addendum 154 – UN Regulation No. 155, Addendum 155 – UN Regulation No. 156) which were adopted by the UNECE World Forum for Harmonization of Vehicle Regulations on June 24, 2020.<ref name=":1">{{Cite web |author=Sekurit Service |date=31 May 2025 |title=Erweiterter CYBER-SECURITY-SCHUTZ (SFD2/UNECE) bei VAG-Fahrzeugen ab Modelljahr 2024 |url=https://www.sekurit-service.com/medias/Technical-Bulletin-New-CSM-Funktion-at-VAG-vehicles-DE.pdf?context=bWFzdGVyfGltYWdlc3wxNjYyMTZ8YXBwbGljYXRpb24vcGRmfGFETmlMMmhsT0M4NU5UYzBORFkwTmpFNE5USTJMMVJsWTJodWFXTmhiQ0JDZFd4c1pYUnBiaUJPWlhjZ1ExTk5JRVoxYm10MGFXOXVJR0YwSUZaQlJ5QjJaV2hwWTJ4bGMxOUVSUzV3WkdZfDAyNmI1YjU0YjYyYzdjODA3ZTg3MTkzMDFjMDBjZjZhNTcyYjhmNjcwY2U2NmVlMTYyMGI3MzY2ZThlMTQ2MDg&attachment=true |url-status=live |access-date=30 May 2025 |language=de |archive-url=http://web.archive.org/web/20250708195024/https://www.sekurit-service.com/medias/Technical-Bulletin-New-CSM-Funktion-at-VAG-vehicles-DE.pdf?context=bWFzdGVyfGltYWdlc3wxNjYyMTZ8YXBwbGljYXRpb24vcGRmfGFETmlMMmhsT0M4NU5UYzBORFkwTmpFNE5USTJMMVJsWTJodWFXTmhiQ0JDZFd4c1pYUnBiaUJPWlhjZ1ExTk5JRVoxYm10MGFXOXVJR0YwSUZaQlJ5QjJaV2hwWTJ4bGMxOUVSUzV3WkdZfDAyNmI1YjU0YjYyYzdjODA3ZTg3MTkzMDFjMDBjZjZhNTcyYjhmNjcwY2U2NmVlMTYyMGI3MzY2ZThlMTQ2MDg&attachment=true |archive-date=8 Jul 2025}}</ref>  


Since July 2022, these rules have applied to all newly registered model series of passenger cars, light commercial vehicles, trucks, and buses. Starting July 1, 2024, the regulations will apply to all newly manufactured vehicles, regardless of whether they are new or existing models.<ref name=":1" />  
Since July 2022, these rules have applied to all newly registered model series of passenger cars, light commercial vehicles, trucks, and buses. Starting July 1, 2024, the regulations will apply to all newly manufactured vehicles, regardless of whether they are new or existing models.<ref name=":1" />  
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===Business model===
===Business model===
SFD(2) protection can be bypassed by purchasing an unlock token which only can be used in the dealer specific software. A single token is available for $50 USD. Each activation token is uniquely assigned to a specific control unit and is valid for a single use only.<ref name=":2">{{Cite web |author=VAGupdate |date=31 May 2025 |title=SFD Token |url=https://vagupdate.com/sfd-token |access-date=31 May 2025}}</ref>
SFD(2) protection can be bypassed by purchasing an unlock token which only can be used in the dealer specific software. A single token is available for $50 USD. Each activation token is uniquely assigned to a specific control unit and is valid for a single use only.<ref name=":2">{{Cite web |author=VAGupdate |date=31 May 2025 |title=SFD Token |url=https://vagupdate.com/sfd-token |access-date=31 May 2025 |archive-url=http://web.archive.org/web/20250601094857/https://vagupdate.com/sfd-token |archive-date=1 Jun 2025}}</ref>


During Guided Fault Finding procedures, SFD-protected control units are automatically re-locked at the conclusion of the diagnostic session. If this does not occur, the system will automatically re-lock the control unit 90 minutes after activation.<ref name=":2" />
During Guided Fault Finding procedures, SFD-protected control units are automatically re-locked at the conclusion of the diagnostic session. If this does not occur, the system will automatically re-lock the control unit 90 minutes after activation.<ref name=":2" />


==Affected car models from Volkswagen AG==
==Affected car models from Volkswagen AG==
The following is a list of Volkswagen AG car models known to be affected by the restrictions.<ref>{{Cite web |last=PCI-Diagnose-Technik GmbH & Co. KG |date=31 May 2025 |title=SFD2 / UNECE - Erweiterter SFD Schutz |url=https://forum.vcdspro.de/index.php?/wiki/misc/allgemeine-informationen/sfd2-unece-erweiterter-sfd-schutz-r68/#was-ist-sfd-2 |access-date=31 May 2025 |language=de}}</ref>
The following is a list of Volkswagen AG car models known to be affected by the restrictions.<ref>{{Cite web |last=PCI-Diagnose-Technik GmbH & Co. KG |date=31 May 2025 |title=SFD2 / UNECE - Erweiterter SFD Schutz |url=https://forum.vcdspro.de/index.php?/wiki/misc/allgemeine-informationen/sfd2-unece-erweiterter-sfd-schutz-r68/#was-ist-sfd-2 |access-date=31 May 2025 |language=de |archive-url=http://web.archive.org/web/20250708195023/https://forum.vcdspro.de/index.php?/wiki/misc/allgemeine-informationen/sfd2-unece-erweiterter-sfd-schutz-r68/ |archive-date=8 Jul 2025}}</ref>


===Audi===
===Audi===
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