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:
Automatic locking
When the vehicle starts to move, the doors and
tailgate can be locked automatically. This feature
can be turned on or off by pressing MY
CAR and going to Car settings
Lock
settings
Aut ...
Cargo area
Located behind the upholstery on the left side of the cargo area
Positions
NOTE
Please consult a Volvo retailer’s Parts
department for the most up-to-date specifications. ...
Fast forward/reverse
Press and hold the buttons to
fast
forward/reverse. This is done at one speed for
audio files but several speeds can be chosen
for video files. Press the buttons
several
times to increas ...
