How do states use OBD II for emission inspections?

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.
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Safety
Like all Volvo models, the XC90 features a comprehensive safety package
designed to protect occupants in a wide variety of accidents. Given the higher
centre of gravity of an SUV, however, there h ...
Active Yaw Control (AYC)
This function helps maintain directional stability,
for example when cornering, by braking
one or more of the wheels if the vehicle shows
a tendency to skid or slide laterally.
This is one of D ...
Interior rearview mirror
Auto-dim function
An integrated sensor reacts to headlights from following traffic and automatically
reduces glare in the mirror. ...
