The VAG KKL 409.1 diagnostic cable is designed to connect a compatible vehicle's 16-pin OBD2 diagnostic socket to a Windows computer.
It is primarily intended for vehicles using supported K-Line, ISO9141, or ISO/KWP communication systems. When paired with compatible diagnostic software, the interface can be used to access vehicle information and perform basic diagnostic functions.
The cable is particularly suitable for many older Volkswagen Group vehicles. However, compatibility depends on the vehicle model, year, engine, ECU, and communication system.
Please check your vehicle's compatibility before purchasing. This interface is not designed for vehicles that require CAN-bus communication.
Compatible with selected models, including:
Not suitable for examples including:
Compatible with selected models, including:
Not suitable for examples including:
Compatible with selected models, including:
Not suitable for:
Compatible with selected models, including:
Not suitable for examples including:
Important: Compatibility may vary depending on the model year, engine, ECU, and communication protocol. A vehicle having a 16-pin OBD2 socket does not necessarily mean that it is compatible with this K-Line interface.
| Specification | Details |
|---|---|
| Product Type | USB OBD2 VAG KKL Diagnostic Cable |
| Model | VAG KKL 409.1 |
| Interface | USB |
| Vehicle Connector | J1962 16-Pin OBD2 Male |
| Communication | K-Line |
| Supported Protocols | ISO9141 / ISO/KWP |
| Vehicle Voltage | 12V systems |
| Power Consumption | 2–5W |
| Cable Length | Approx. 50 cm / 20 in |
| Weight | Approx. 0.1 kg |
| Material | Plastic and electronic components |
| Certification | CE |
| Software Version | VAG 409.1 |
| Hardware Version | VAG 409.1 |
| Operating System | Windows-based systems; compatibility depends on software and drivers |
This is a K-Line diagnostic interface, not a universal OBD2 scanner.
Before purchasing, please verify that your vehicle uses a supported K-Line / ISO9141 / ISO/KWP communication protocol and that your intended diagnostic software and Windows drivers support the VAG KKL 409.1 interface.




