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:
Removing the cover to access the bulbs
NOTE
Before starting to replace a bulb, see
page 322.
1. Open the retaining clamps by pressing
them to the sides.
2. Pull the cover straight out.
Reinstall the cover in the reverse order. ...
Introduction
System overview
1 Cell phone
2 Location of the microphone
3 Steering wheel keypad
4 Center console control panel and display ...
Random
This function plays the tracks in random order
(shuffle). The random tracks/sound files can be
scrolled through in the normal way. To listen to
tracks in random order:
1. Press OK/MENU,
2. Tur ...
