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:
Pairing and connecting an external device
Before an external device can be connected, it must be paired to the infotainment
system. The procedure for connecting an external device varies, depending whether
or not the device has previously ...
Overview
Center console control panel
1 VOL: Volume control
2 MEDIA button
3 TUNE: Turn to navigate among menu alternatives
and folders shown in the display.
4 OK/MENU: Press to confirm your selection ...
Storage spaces
Storage spaces
1 Compartment in door panel
2 Storage pocket on the front edge of the front seat cushions
3 Glove compartment
4 Storage compartment, 12-volt socket and AUX input/USB connector
5 ...
