On-Board Diagnostics are part of the U.S government’s mandate to help the automotive industry lower vehicle emissions. It’s a universal program installed in a vehicle’s computer system that is designed to detect malfunctions, set a diagnostic trouble code (DTC) and turn on the “CHECK ENGINE” light if there is a problem. All 1996 or newer cars, light trucks, SUVs and minivans manufactured for use in the U.S have the most advanced OBD, called the second-generation on-board diagnostics program (OBD2).Adidas EQT Support EQT Support 91/18 Grey/Black