How do states use OBD II for emission inspections?

How do states use OBD II for emission inspections?  - Emission inspection readiness - Maintaining your car - Maintenance and specifications - Volvo XC60 Owners Manual - Volvo XC60

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.

    See also:

    External sound sources
    USB flash drive To simplify the use of a USB flash drive, it is advisable to only store music files on the drive. It will take considerably longer for the system to index the files on the drive i ...

    CD player/changer
    Playing a CD CD player If a CD is in the slot and the audio system is in CD mode when it is switched on, the CD will be played automatically. Otherwise, to play a CD: 1. Insert a CD into the ...

    Safety
    Though its sister model, the S40 sedan, earned good crash-test scores from the Insurance Institute for Highway Safety, the wagon hasn't been crash tested. Unfortunately, differences in weight and ...