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:

    Shiftlock
    When your vehicle is parked, the gear selector is locked in the P (Park) position. To release the selector from this position, the ignition must be in mode II (see page 82) or the engine must ...

    Defroster
    This function defrosts/de-ices the windshield and front side windows. The indicator light in the defroster button lights when the function is active. Blower speed increases automatically and t ...

    Security
    The Volvo S80 is fitted as standard with a wide range of features designed to protect occupants from burglary, theft and assault. An electronic immobiliser makes it impossible to start the car wit ...