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:

    Rain sensor
    The rain sensor automatically regulates wiper speed according to the amount of water on the windshield. The sensitivity of the sensor can be adjusted by twisting ring (1) up (the wipers will swe ...

    Inflation pressure
    Tire inflation pressure table The following tire pressures are recommended by Volvo for your vehicle. Refer to the tire inflation placard (see page 289 for its location) for information specific ...

    Parking lights
    Headlight control in position for parking lights The parking lights (the license plate lights also come on) can be turned on even when the ignition is switched off. Turn the headlight control to ...