1. This diagnostic cable is usable for ISO9141 and KWP2000 transmission protocol like used for example by:
- Volkswagen
- Audi
- Skoda
- Seat
2. This cable cannot work if your car uses a protocol/bus system like VPW PWM or CAN-bus.
3. Terminal K = Bus of communication
4. Terminal L = Ignition for waking up car computing system (ECU: Engine Control Unit)
5. Existed 3 different protocols with same OBD2 connector incl. ISO/KWP VPW PMW
6. This K/L Diagnostic interface & cables work on ISO/KWP (Key Word Protocol) launched after 1996 only.
7. Supported also ISO9141 protocol
8. The Cables may work with some versions of the Car soft but car soft used a lot of different interfaces during the different versions and also had some custom interfaces.