VSI NxGen for J2534 reprogramming is the Vehicle Standard Interface for the Next Generation

VSI NxGen is the latest and most secure device providing technicians & vehicle security professionals ECU programming, ADAS calibration, diagnostics and security access with J2534-1/-2 compliance

Owning the latest SAE J2534 compliant device is essential for auto repair. Since 1996, many engine and transmission ECU’s required software updates and programming. Today, many electronically controlled parts require periodic software updates and programming upon installation. Right to Repair legislation has now brought access to software-driven ECU programming, vehicle diagnostics, repair information and vehicle security access to shops and technicians. Advanced repair and revenue opportunities are available to everyone!



  • Meets mandated emission-related programming for all vehicle makes/models
  • Right-to-Repair, OE/Dealer-level Module Programming, Vehicle Diagnostics, Vehicle Security System Access, Key Programming, ADAS Calibration
  • Tested/used by OEMs
  • Ensure secure connection and communication from PC to Vehicle
  • Record/Analyze Vehicle Network Data
  • View/Read/Print Report of All Available Vehicle DTC’s (including Freeze Frame), Parameters, ECU info, Monitors and Monitor Results
  • Automatic VSI Software and Firmware Updating to ensure use of the most current versions
  • Included Technical Assistance & Support
  • Free DG Diagnostics Software (DGD)


  • CAN FD
  • FT CAN
  • Dual Wire CAN
  • ISO 15765
  • GM LAN
  • ISO 14229
  • SAE J1850 PWM (Ford SCP)
  • SAE J1850 VPW (GM Class2)
  • SAE J2610 (Chrysler SCI)
  • ISO 9141 / ISO 14230 (KWP2000)

J2534 FAQs

For questions about Automotive reprogramming questions, visit our J2534 FAQ page.

OEM Compatibility

To view or subscribe to an OEM service website to use in conjunction with the VSI NxGen pass-thru box, view the links on the OEM Reprogramming Sites page.

For OEM Subscription Reprogramming Instructions, see the “OEM Reprogramming Guides” listed on the Documents Page.

OEM Diagnostics

DG’s Pass-Thru devices work with various OEM Diagnostic software subscriptions such as:

  • GM Tech2Win
  • GM GDS2
  • Ford FDRS
  • VAG Offboard Diagnostic Information System Service (ODIS)
  • Toyota TechStream
  • Jaguar/LandRover IDS
  • Volvo VIDA
  • Roush Diagnostic Tool (RDT)
  • Stellantis WiTech 2.0

OEM Reprogramming

DG’s J2534 Pass-Thru devices work with various OEM Reprogramming software subscriptions such as:

  • GM SPS2
  • Ford FJDS
  • Stellantis WiTech 2.0
  • Toyota Techstream