The VCDS software, developed by Ross-Tech, requires a specific type of cable to interface with vehicles. Often referred to as an “Obd Vcds Kabel,” this cable allows for diagnostics and data logging. This article addresses common questions regarding cable compatibility, specifically focusing on the KKL 409.1 cable often required for open-source software like ecuExplorer, and its relationship with the HEX+CAN cable used with VCDS.
One common inquiry is the availability of a genuine Ross-Tech KKL 409.1 cable. While clones exist, many users prefer genuine products. It’s important to clarify that Ross-Tech primarily focuses on their current HEX-NET and HEX-V2 interfaces, which offer broader compatibility and functionality compared to the older KKL 409.1 interface. Therefore, finding a new, genuine KKL 409.1 cable directly from Ross-Tech might be challenging.
Users often attempt to utilize their existing HEX+CAN VCDS cables with software like ecuExplorer, encountering communication issues. This is because while both cables utilize the OBD-II port, they operate with different communication protocols. The KKL 409.1 interface uses the ISO 9141 and KWP2000 protocols, predominantly found in older vehicles. The HEX+CAN interface, on the other hand, supports these protocols along with newer CAN protocols, offering wider vehicle coverage. Therefore, a HEX+CAN cable isn’t always compatible with software designed specifically for the KKL 409.1 interface.
Another concern arises regarding VCDS software recognizing the connected interface. When a genuine Ross-Tech cable is connected, VCDS software will typically recognize it automatically. However, third-party software might require manual selection of the communication port and interface type. If experiencing connectivity problems, ensure the correct COM port is selected within the software settings and that the interface is chosen accordingly (KKL or CAN).
Uninstalling VCDS does not prevent future reinstallation and usage. Ross-Tech provides license management tools that allow users to manage their licenses and reinstall the software on different computers if needed. Reinstalling VCDS typically requires downloading the latest version from the Ross-Tech website and activating the license using the existing license key.
In summary, while a genuine Ross-Tech KKL 409.1 cable might be difficult to find, using a HEX+CAN cable with software designed for a KKL interface is often not possible due to protocol differences. Understanding these compatibility issues can save users time and frustration. If using open-source software requiring a KKL 409.1 interface, consider sourcing a compatible cable. For broader vehicle coverage and full VCDS functionality, a HEX-NET or HEX-V2 interface from Ross-Tech is recommended.
