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:
Starting and stopping the engine
See page 112 for information on starting the
engine and switching it off. ...
Arming the alarm
Press the Lock button on the remote key. One long flash of the turn signals
will confirm that the alarm is armed.
Alarm confirmation settings can be changed in MY CAR, under Car settings
- ...
Checking the engine oil
The oil level should be checked at regular intervals,
particularly during the period up to the
first scheduled maintenance service.
• See page 356 for oil specifications.
• Refer to the Warranty ...
