Maintenance and specifications
How do states use OBD II for emission inspections?
In this manual: Maintenance and specifications
~1min read

Many states connect a computer directly to a vehicle's OBD II system. The inspector can then read "faults." In some states, this type of inspection has replaced the tailpipe emission test.
Test yourself
A quick Volvo XC60 quiz: every answer comes with an explanation and a link to the manual page.
Was this page helpful?