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:
Scanning audio files on an external device
This function plays the first ten seconds of
each audio file. This function can be activated/
deactivated under: Bluetooth menu
Scan. ...
Getting started
Use the controls on the steering wheel keypad and in the center console to access,
navigate and make selections in the hands-free system’s menus. ...
Parking lights
Headlight control in position for parking lights
The parking lights (the license plate lights also
come on) can be turned on even when the ignition
is switched off.
Turn the headlight control ...
