The Ford EEC-IV System Electronic Control Assembly Breakout Box 126 by Thexton is a diagnostic service tool designed specifically for passenger vehicles. While it does not come with a warranty, this assembly breakout box allows for easy access and analysis of electronic control systems in Ford vehicles, providing valuable assistance for troubleshooting and maintenance tasks. With the manufacturer part number 126, this tool is a reliable resource for automotive professionals and enthusiasts looking to diagnose and repair electronic systems in Ford vehicles.