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:

    Symbols and messages in the display
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    Ignition mode II
    - With the remote key fully pressed into the ignition slot, press START/STOP ENGINE for approximately 2 seconds. ...

    Windshield wipers/washers
    Windshield wipers and washers 1 - Rain sensor* on/off 2 - Thumb wheel sensitivity/frequency CAUTION Use ample washer fluid when washing the windshield. The windshield should be thoroughly ...