Using a VAG-COM cable with third-party software, like ecuExplorer for Subaru diagnostics, can be confusing. A common question is whether a specific VAG cable, like the 409.1, is required, and if using it will interfere with VCDS. This article addresses these concerns and explains the compatibility of VAG cables with VCDS software.
While clones of the 409.1 cable exist, using a genuine Ross-Tech cable ensures quality and compatibility. However, even with the correct cable, connecting to a Subaru ECU using third-party software might require specific drivers and configurations. The 409.1 cable, primarily designed for older VW/Audi vehicles, utilizes the KKL protocol.
Connecting a genuine Ross-Tech HEX+CAN cable to a computer typically doesn’t automatically connect to VCDS. The VCDS software needs to be launched to initiate communication with the vehicle. Therefore, using a Ross-Tech cable with ecuExplorer shouldn’t inherently interfere with VCDS.
Uninstalling VCDS won’t lock you out of using it again. Reinstallation is straightforward using the downloaded software and license information. However, always back up your license information before making any software changes.
If experiencing connection issues with ecuExplorer, ensure the correct drivers for the cable are installed and the software is configured properly for the specific Subaru model. The OBD-II functionality within VCDS operates independently and should not be affected by third-party software or drivers.
When troubleshooting drivability issues in a Subaru, using a dedicated Subaru diagnostic tool or software designed specifically for Subaru vehicles might offer more comprehensive data and functionality compared to generic OBD-II software or adapted VW/Audi tools.
