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:
Sensor location
• The sunlight sensor is located on the top
side of the dashboard.
NOTE
The sunlight sensor monitors which side of
the car that is most exposed to sunlight.
This can mean that the temperature m ...
Vehicle Overview
Long known for safe, solid sedans and wagons, Volvo joined the sport utility
vehicle fray in 2003 with its car-based XC90. The Swedish automaker promised the
ride and handling of a passenger car. ...
Random
This function plays the audio files on the external
device in random order (shuffle). This function
can be activated/deactivated under:
Bluetooth menu
Random
Press the buttons on the cente ...
