The Bosch HDS 250 Heavy Duty Scan Tool Kit is designed to read, diagnose, and clear heavy duty standard trouble codes for Class 4 through 8 vehicles. This tool works on 12V and 24V systems to cover most medium duty and heavy duty vehicles. The kit includes 16-pin J1962, 9-pin Deutsch and 6-pin Deutsch cables, and features Class 4 through 8 truck coverage featuring "Automatic Protocol Search." The HDS 250 meets SAE standards for HD J1587/J1708 CAN and includes engine, transmission, and ABS coverage. The tool also features a rugged enclosure for durability and a color display that shows code descriptions and definitions, graphs live data MIDS/PIDS, and can record and playback data streams. The tool can be updated via the internet for new and expanded vehicle coverage.