Your Fast Path to Full Diagnostic Access on Today’s SGW-Protected Vehicles

Dec. 11, 2025

In this Tech Tip, Pete Meier with Dorman Training for Motor Age walks technicians through one of the biggest challenges facing modern diagnostics: the Secure Gateway Module (SGW). As more automakers adopt secure systems to protect vehicle networks, independent shops are increasingly running into roadblocks — SGW-equipped vehicles that block bi-directional controls, relearns and even simple repairs. Meier breaks down what the SGW is, why it exists and how it impacts everyday diagnostics in the bay. 

To help shops stay productive, Meier demonstrates how the Autel MaxiSYS Ultra S2, paired with AutoAuth authentication, provides fast, secure access that meets OEM cybersecurity standards. With its integrated diagnostic tool access features — including a multimeter, scope and J2534 Pass-Thru — the Ultra S2 becomes a true all-in-one solution for tackling vehicle cybersecurity challenges. 

Meier shows how easy it is to update the tool, register through AutoAuth.com, connect using the VCMI2 interface, and unlock full access to Stellantis, Mercedes-Benz, Nissan, and other protected systems. 

Watch now to see how the Ultra S2 can turn a locked-out diagnosis into a quick win. Then visit autel.us/product/maxisys-ultra-s2 for more information.  

About the Author

Pete Meier

Former Creative Director, Technical | Vehicle Repair Group

Pete Meier is the former creative director, technical, for the Vehicle Repair Group with Endeavor Business Media. He is an ASE certified Master Technician with over 35 years of practical experience as a technician and educator, covering a wide variety of makes and models. He began writing for Motor Age as a contributor in 2006 and joined the magazine full-time as technical editor in 2010. Pete grew the Motor Age YouTube channel to more than 100,000 subscribers by delivering essential training videos for technicians at all levels. 

Connect with Pete on LinkedIn.

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