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.
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Parking lights
Headlight control in position for parking lights
The parking lights (the license plate lights also
come on) can be turned on even when the ignition
is switched off.
Turn the headlight control ...
Sub-channels
Example of an HD Radio station with sub-channels
In many cases, a main HD Radio station (FM wavebands only) will also have sub-channels
offering additional types of programming or music.
In such ...
Vanity mirror lights
1. Carefully insert a
screwdriver and pry out
the lens.
2. Pry out the bulb and replace it.
3. Carefully press the lower edge of lens onto
the four tabs and press the upper edge of
the lens in ...
