The new PRO-LINK Ultra (EEHD704004) from Snap-on provides all the answers that heavy-duty technicians need to keep their customers on the road – all in a single handheld tool. Covering commercial vehicles from light diesels to Class 8 heavy-duty trucks, PRO-LINK Ultra offers licensed and tested, OEM-proprietary coverage for major systems such as engines, transmissions, ABS, instrument cluster, emissions, SCR, body controls and more, which makes the tool ideal for everything from fleets, dealerships and owner-operators to repair shops, municipalities and mobile truck services. PRO-LINK Ultra provides a wide range of coverage for the systems used by the major OEMs including Freightliner, International, Volvo, Mack, Paccar, Kenworth and Peterbilt. PRO-LINK Ultra provides essential maintenance functions that let technicians read and clear fault codes, monitor vehicle and driver performance with trip data, create health reports and view live system data. It also includes powerful repair functions such as live data graphing for finding tough problems, special tests to verify component failures, and the ability to program replacement components and perform custom ECU programming.