1Fitment: The 6Pin to 16PIN OBD1 to OBD2 diagnostic cable is professionally molded and designed, suitable for J1708 heavy duty trucks. 2Function: This cable can be used for converting connection from heavy duty truck round 6pin to your existing OBD2 16pin interface tool. 3Stable Transmission: The manufacturing process fully complies with the standard, the cable has sensitive response and stable transmission performance. 4PVC Material: Exquisite workmanship, the adapter cable is made with high strength PVC material for maximum durability, wear resistance and durable. 5Plug and Play: Truck diagnostic cable is easy to use, plug and play, without modification, perfectly solves the problem of connecting diagnostic tools.