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:

    Indicator and warning symbols
    Low oil pressure If the light comes on while driving, stop the vehicle, stop the engine immediately, and check the engine oil level. If the oil level is normal and the light stays on after rest ...

    Switching to another device
    It is possible to switch among paired Bluetooth devices that are in the vehicle. To do so: 1. Press MEDIA several times until Bluetooth is displayed, release the button and wait for several secon ...

    Starting the vehicle
    Starting the engine WARNING Before starting, check that the seat, steering wheel and mirrors are adjusted properly. Make sure the brake pedal can be depressed completely. Adjust the seat if ne ...