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:
Memory status
In phone mode, the memory status of the infotainment
system's phone book and the connected
cell phone's phone book can be seen
in Phone menu
Phone book
Memory
status. ...
Symbols and messages in the display
...
Cleaning the BLIS camera lenses
In order to function optimally, the BLIS camera lenses must be kept clean. They
can be wiped clean with a soft cloth or wet sponge.
CAUTION
Clean the lenses carefully to avoid scratching.
The ...
