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:
AUX
The AUX (auxiliary) port can be used to connect
a device such as an MP3 player.
Turn the SELECTOR control (see the illustration
on page 246) to choose AUX.
If the player is being charged throu ...
Repeat folder
This function makes it possible to play files in
a folder repeatedly. When the last file has been
played, the first file will begin again. To activate:
1. Press OK/MENU.
2. Turn TUNE to Repeat f ...
Geartronic–manual shifting
Geartronic allows you to manually shift among your vehicle's six forward speeds.
Geartronic can be selected at any time.
To access the manual shifting position from Drive (D), move the gear ...
