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General Testing Info | Test Procedures

 

Test Procedures

On-Board Diagnostic Testing

Newer vehicles are tested using technology that uses the vehicle's On-Board Diagnostics(OBD) computer system to diagnose operations of emissions control systems. The new test will help ensure that today's newer and low emissions vehicles, with their advanced computerized emissions controls, continue to run clean and efficiently.

The OBD test is quick and easy. The inspector connects your vehicle to the inspection computer and downloads the data. The results are printed on the Vehicle Inspection Report (VIR) which you receive at the end of the test.

If you pass the OBD test, you pass the emissions test. Some 1996 model year and newer vehicles do not respond to emissions testing using OBD. These vehicles will receive a tailpipe test.

How Does My Vehicle's OBD System Work?

 

  


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