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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Listening to satellite radio
The Sirius satellite system consists of a number
of high elevation satellites in geosynchronous
orbit.
NOTE
• The digital signals from the Sirius satellites
are line-of-sight, which means that ...
Brake lights
The brake lights come on automatically when the brakes are applied.
Adaptive brake lights
The adaptive brake lights activate in the event of sudden braking or if the ABS
system is activated. This ...
