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:
Retractable power door mirrors
The mirrors can be retracted for parking/driving in narrow spaces:
1. Press down the L and R buttons at the same time.
2. Release them after approximately one second. The mirrors automatically stop ...
Unique functions—PCC
1 Information button
2 Indicator lights
Pressing the information button provides certain
information about the vehicle with the help
of the indicator lights. ...
Removing the headlight housing
1. Switch off the ignition by briefly pressing
the START/STOP ENGINE button.
2. Remove the remote key from the ignition
slot1.
3. (Upper illustration under "Headlight housing").
&nb ...
