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.
See also:
Locking
1. Switch off the engine (see page 114 for
details).
2. Remove the remote key from the ignition
slot.
3. Open the driver's door.
> A sound will be audible when the steering
wheel lock enga ...
Exterior
For 2008, the nose and tail are modified, and though Volvo says it has
changed the headlights and taillights, it seems limited to the elements within,
such as taillamp LEDs and lens colors, and no ...
Tire rotation
Your vehicle has no required tire rotation. Tire wear is affected by a number
of factors such as tire inflation, ambient temperature, driving style, etc.
NOTE
If the tires are rotated, the ...
