The adapter concept “Easy Connect” significantly simplifies the connection of the KTS Truck diagnostic module to the vehicle. KTS Truck can be directly connected to the OBD socket via “Easy Connect”. Thanks to vehicle-specific adapter lines, the device can be connected to vehicles without an OBD socket just as easily. The adapters are non-interchangeable to enhance efficiency. Adapters are developed further in accordance with the vehicles covered by the diagnostic software. With “Easy Connect”, workshops can select the required adapter cables from the large product portfolio.