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:
Indicator and warning symbols
Low oil pressure
If the light comes on while driving, stop the vehicle, stop the engine immediately,
and check the engine oil level. If the oil level is normal and the light stays on
after rest ...
Switching to another device
It is possible to switch among paired Bluetooth devices that are in the vehicle.
To do so:
1. Press MEDIA several times until Bluetooth is displayed, release the button
and wait for several secon ...
Starting the vehicle
Starting the engine
WARNING
Before starting, check that the seat, steering
wheel and mirrors are adjusted properly.
Make sure the brake pedal can be
depressed completely. Adjust the seat if
ne ...
