Clearing fault codes with VCDS is a straightforward process that allows you to diagnose and address issues in your Volkswagen, Audi, Seat, or Skoda vehicle. This guide will explain how VCDS (Vag-Com Diagnostic System) handles VIN restrictions and which functions allow unlimited use, including clearing Diagnostic Trouble Codes (DTCs).
Understanding VCDS VIN Restrictions
VCDS interfaces come with VIN (Vehicle Identification Number) limitations for certain functions. This licensing model differentiates between professional use and individual enthusiasts. However, clearing DTCs, a crucial diagnostic step, is not VIN-restricted. You can use VCDS to clear fault codes on an unlimited number of vehicles without consuming your VIN licenses.
Unlimited VCDS Functions
Several key VCDS functions are available for unlimited use, regardless of your license type:
- Auto-Scan: This function scans all the control modules in your vehicle and identifies any stored fault codes.
- Clear DTCs/Fault Codes: This allows you to erase stored DTCs after addressing the underlying issue.
- Measuring Values (Live Data): This feature lets you monitor various sensor readings and system parameters in real-time, aiding in diagnostics.
Example of an Auto-Scan in VCDS
These unrestricted functions enable enthusiasts and professionals to perform essential diagnostic tasks on any vehicle without worrying about VIN limitations. This is particularly useful for:
- DIY Diagnostics: Troubleshooting your own vehicle or assisting friends and family.
- Used Car Inspections: Evaluating the health of a potential used car purchase.
VIN-Restricted Functions
Functions that modify vehicle settings, such as coding, adaptation, and basic settings changes, are subject to VIN restrictions. This ensures that these powerful functionalities are primarily used by trained professionals.
Example of Coding in VCDS – a VIN-Restricted Function
While accessing specific control modules outside of an Auto-Scan or using the “Clear All DTCs” function may prompt you to register a VIN, declining will not prevent you from clearing existing codes.
Older Vehicles and VINs
Vehicles manufactured before model year 2002 (generally those without Immo-3 immobilizer systems) do not have their VINs stored electronically. Consequently, you can perform all VCDS functions on these vehicles without any VIN restrictions.
Upgrading Your VCDS License
If you need to perform VIN-restricted functions on multiple vehicles, you can upgrade your VCDS license from 3 VINs to 10 VINs or to an unlimited license through Ross-Tech’s website.
Conclusion
VCDS offers a powerful and versatile diagnostic solution for VW/Audi group vehicles. The ability to clear fault codes with VCDS on an unlimited number of cars, coupled with unrestricted access to Auto-Scan and Measuring Values, makes it an invaluable tool for both enthusiasts and professionals. While some advanced functions are VIN-limited, clearing DTCs remains freely available, empowering users to diagnose and resolve vehicle issues effectively.
