Passenger vehicle inspection obd8/18/2023 ![]() Many emission control components can be examined and repaired during routine servicing. Regular vehicle maintenance is crucial for ensuring proper vehicle performance and inspection readiness. If the light is on during testing, the vehicle will be rejected. If the light remains on, the OBD system has identified an issue, which could range from a minor problem like a loose gas cap to a significant emission component failure. The Check Engine Light, also known as the Malfunction Indicator Light (MIL), serves as a warning for vehicle owners that a problem has been detected within the emission control system. It is advisable to address OBD rejections promptly to allow sufficient time for repairs. Only one 60-day repair period is permitted per inspection cycle for OBD rejections. Vehicles subject to OBD testing must pass the test, and any “Rejected” vehicles will require necessary repairs. ![]() Light-duty gasoline-fueled passenger vehicles (8500 GVWR and below) from 1996 or newer and light-duty diesel passenger vehicles (8500 GVWR and below) from 1997 or newer must undergo OBD testing during the inspection process. This system helps motorists identify potential defects that could contribute to increased pollution, while also assisting mechanics in accurately diagnosing issues and making effective repairs. OBD is a computerized system integrated into all light-duty passenger vehicles manufactured in 1996 or later, designed to monitor the performance of major engine components, including emission control systems. ![]() Understanding Emissions and On-Board Diagnostics (OBD) TestingĪs mandated by RSA 266:59-b IV, vehicles younger than 20 years must undergo On-Board Diagnostics (OBD) testing as a part of the inspection process, in addition to the physical safety inspection required for all vehicles.
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