Code Reader for Heavy Duty Truck Applications Launch's CR-HD is the perfect tool for diagnosing and clearing heavy duty diagnostic trouble codes. . It covers J1587, J1708 and J1939 protocols, for accessing Engine, Transmission, Brakes and more. . It features a 2.8” full color LCD display and is ergonomic, highly portable and easy to use. . An extra-long 6.5ft. cable and rugged carry case further enhance the utility of the CR-HD.. Coverage for Engine, Transmission, Brakes and More . Provides J1587, J1939, and J1708 Data. Read & Clear Active and Inactive Fault Codes. Monitor All Data and View Live Data Streams. Includes 6-pin & 9-pin Deutsch connectors and 16-pin connector. Extra long 6.5 ft. cable . Rugged, Padded Storage Case. Free Internet Updates 301050098