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:

    Checking tire pressure
    Cold tires Inflation pressure should be checked when the tires are cold. The tires are considered to be cold when they have the same temperature as the surrounding (ambient) air. This temperature ...

    Windshield wiper blades
    To change a windshield wiper blade: 1. Fold the wiper arm out from the windshield and hold the wiper blade. 2. Press in the grooved catches and pull out the wiper blade. 3. Insert a new wiper ...

    Washer fluid reservoir
    Washer fluid reservoir The washer fluid reservoir is located in the engine compartment and holds approx. 6.8 US qts (6.5 liters). When there is less than approximately 1 US qt (1 liter) rem ...