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:
Ambient lighting conditions
The camera automatically monitors the ambient
lighting conditions behind the vehicle and
constantly adjusts sensitivity to light. This may
cause the brightness and quality of the image
on the ...
Listening to the radio
You can also listen to the infotainment system's
radio through the RSE system.
1. Switch on the cordless headphones, select
CH.A for the left screen or CH.B for the
right screen.
2. Point the ...
Steering wheel keypad
Standard steering wheel keypad
1 - Left/right arrow keys: A short press moves between preset radio stations
or tracks on a disc. Press and hold to search within tracks or to tune to the next/prev ...
