The vehicle's owner's manual may provide more specific information on getting your vehicle's OBD system ready. In order for the OBD systems to become ready, the vehicle should be driven under a variety of normal operating conditions including a mix of highway driving, stop and go driving and at least one overnight off period. Check your Vehicle Inspection Report for the specific monitors that were not ready. For 2001 and newer model year vehicles, if more than one readiness monitor is not set we are unable to retest the vehicle. A recently disconnected or discharged (run down) battery, or recent servicing or clearing codes with a scan tool are the most likely reasons for a vehicle's OBD system being not ready.įor 1996-2000 model year vehicles, we are not able to retest the vehicle if more than two readiness monitors are not set. Problems may be present, but not yet identified. ![]() ![]() If the monitors have not completed their internal tests, the OBD system is not ready to report its status. Each OBD system is comprised of several monitors that evaluate specific aspects of the emission control system. Unset Readiness Monitors: The vehicle's OBD system is not ready. If your vehicle was rejected for an OBD test A qualified, trained automotive service technician equipped with the appropriate diagnostic repair tools can repair your vehicle.ĭepending on your vehicle's age and mileage, repairs may be covered under the vehicle manufacturer's warranty. These DTC's will help your technician diagnose and repair your vehicle. The specific Diagnostic Trouble Code (DTC) will be listed on the Vehicle Inspection Report. This indicates that there is a problem with your vehicle. You may see a 'Service Engine Soon' or 'Check Engine' light lit up. The MIL functions to let the vehicle operator know when there is a problem with the vehicle.
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