What should I do if my OBD inspection fails?
There may in fact be nothing wrong with the vehicle; the computer simply needs to complete its checks. One week of combined highway and city driving is normally enough to reset the system and provide an accurate reading of vehicle performance. Click to expand…
Can a car fail an OBDII emissions test?
Until the computer is “ready” for OBDII emissions testing, the vehicle will fail its initial inspection or be turned away from a re-test. There may in fact be nothing wrong with the vehicle; the computer simply needs to complete its checks.
When does a vehicle become ” ready ” for an OBD test?
Driving the vehicle in a normal fashion may allow your vehicle’s to become “ready”. However, for certain emission systems and certain vehicles, the status returns to “ready” only after driving the vehicle a specific way. This specific “drive cycle” is determined by the manufacturer.
What does the OBD II Mil code start with?
Generic OBD II codes all start with “P0” while the OEM enhanced codes all start with a “P1.” Enhanced codes are often vehicle specific, and may not be readable with some code readers or scan tools. In other words, it may require OEM scanner or a dealer scan tool to read the enhanced codes.
What causes a car to not pass an OBD inspection?
If enough monitors have not completed their checks by the time an inspection station connects to a vehicle’s OBDII system for an emissions test, the vehicle is “not ready” and will not pass its inspection.
Until the computer is “ready” for OBDII emissions testing, the vehicle will fail its initial inspection or be turned away from a re-test. There may in fact be nothing wrong with the vehicle; the computer simply needs to complete its checks.
Driving the vehicle in a normal fashion may allow your vehicle’s to become “ready”. However, for certain emission systems and certain vehicles, the status returns to “ready” only after driving the vehicle a specific way. This specific “drive cycle” is determined by the manufacturer.
What does on board diagnostic II ( OBDII ) mean?
Vehicles equipped with On Board Diagnostic II (OBDII), which includes most 1996 or newer gasoline-powered vehicles and most 1997 or newer diesel-powered vehicles that have a gross vehicle weight rating (GVWR) less than 8,501 pounds, self-test their emission systems utilizing various monitors.