... warranty 5.free updatio for truck, ps2 heavy duty diesel scanner for truck, car tool, auto diagnostic tool,truck scanner PS2 HEAVY DUTY ... C. the upward-side connection of the mainframe:1) Power switch: Uses for starting and closing of main engine2) USB connection: ... mainframe with SD card, touching pen, testing adapters, group of lines, SD card adaptor, operation manual and outside suitcase2) ...