Always use the same physical USB port on your laptop. Alternatively, in Device Manager > Advanced COM settings, you can assign the same COM number to all ports.
Before downloading drivers, determine which chip your cable uses. Most "blue cables" use one of two: Generally more stable and expensive. how to install vag kkl 4091 on windows 10
: For the test to fully pass, the cable must be plugged into your car's OBD-II port with the ignition turned ON . If the status says "Interface: Found!", you are ready to begin diagnosing. How to Install VAG-COM 409.1 KKL Cable on Windows Always use the same physical USB port on your laptop
Comprehensive Guide to Installing VAG-KKL 409.1 Interface on Windows 10 Most "blue cables" use one of two: Generally
If you see an unknown device or a yellow warning:
The VAG-KKL 409.1 cable is an OBDII-to-Serial adapter utilizing the ISO 9141 and ISO 14230 (KWPs) protocols. It allows users to diagnose Engine, ABS, Airbag, and Transmission systems in older VAG vehicles (roughly 1990 to 2005).