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:
Basic infotainment functions
Controls in the center console for basic infotainment functions
1 - SOUND: press this button to access the menu for adjusting bass, treble, etc.
See page 211 for additional information.
2 - VOL: ...
Random
This function plays the tracks in random order
(shuffle). The random tracks/sound files can be
scrolled through in the normal way. To listen to
tracks in random order:
1. Press OK/MENU,
2. Tur ...
Selecting a magnetic zone
Magnetic zones.
The earth is divided into 15 magnetic zones. The correct zone must be selected
for the compass to work correctly.
1. Put the ignition in mode II.
2. Using a pen or similar objec ...
