What is the OBD-II test?
OBD stands for On-Board Diagnostics and this is the second generation of this technology. Starting in 1996, all vehicles sold in the United States were required to include this technology. It requires a computer on board the vehicle that monitors the engine and power train systems and logs any problems that could cause the vehicle’s emissions to increase. A failed OBD-II test means that there is a problem with the vehicle. The technology also provides valuable information for the service technician to help diagnose the problem. By using the OBD test we gain additional emissions reductions that are not possible with the current tail pipe test.
