The FTDI FT232BL chip is commonly used in VAG-COM cables for vehicle diagnostics. This article explores using a VAG-COM cable, specifically referencing the KKL 409.1 interface, with the open-source Subaru diagnostic software ecuExplorer. We will address compatibility concerns, connection issues, and the impact of VCDS software on using alternative diagnostic tools.
While the recommended interface for ecuExplorer is a KKL 409.1 VAG-COM cable, many users possess newer HEX+CAN interfaces. A common question is whether these more recent cables are compatible with ecuExplorer. While technically possible, compatibility isn’t guaranteed. The FT232BL chip found in many KKL interfaces provides a stable and reliable connection for older vehicles. However, ecuExplorer’s reliance on this specific interface might present challenges when using a HEX+CAN cable.
Connecting a VAG-COM cable to a computer with VCDS installed can lead to conflicts. VCDS might automatically recognize and utilize the connected interface, preventing ecuExplorer from establishing communication. Uninstalling VCDS might be necessary to allow ecuExplorer to access the cable. Reinstalling VCDS after this process should not result in being locked out of the software, as long as a legitimate license is used.
Troubleshooting communication issues in ecuExplorer often involves verifying the correct COM port selection within the software. This should correspond to the port assigned to the VAG-COM cable by the computer’s operating system. Additionally, ensuring the correct baud rate is selected in ecuExplorer is crucial for successful communication. The standard baud rate for KKL interfaces is typically 57600.
While factory Subaru diagnostic tools provide basic functionality, ecuExplorer offers more in-depth data logging and analysis capabilities. This makes it a valuable tool for diagnosing complex drivability issues that might be missed by generic OBD-II scanners or even the manufacturer’s own software. Using a dedicated KKL 409.1 interface with the FT232BL chip is generally recommended for the best experience with ecuExplorer. If encountering connection problems with alternative interfaces, exploring driver updates or alternative FTDI drivers may resolve the issue.
In conclusion, using an FT232BL-based VAG-COM cable with ecuExplorer can provide enhanced diagnostic capabilities for Subaru vehicles. Understanding potential compatibility issues with different cable types and addressing software conflicts is key to successfully using this setup.
