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.

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    Unique functions—PCC*
    1 - Information button 2 - Indicator lights Pressing the information button provides certain information about the vehicle with the help of the indicator lights. ...

    Random
    This function plays the audio files on the external device in random order (shuffle). This function can be activated/deactivated under: Bluetooth menu Random Press the buttons on the cente ...

    Using seat belts
    Adjusting the seat belt Volvo, the inventor of the three-point seat belt, urges you and all occupants of your vehicle to wear seat belts and ensure that children are properly restrained, using a ...