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:
Switching BLIS on and off
BLIS is automatically activated when the ignition
is switched on. The indicator lights will
provide confirmation by flashing 3 times.
• The system can be switched off by pressing
the BLIS but ...
Inflatable Curtain (IC)
General information
This system consists of inflatable curtains
located along the sides of the roof liners,
stretching from the center of both front side
windows to the rear edge of the rear ...
Towing vehicles with front wheel drive/ All Wheel Drive
Volvo recommends the use of flat bed equipment.
If wheel lift equipment must be used, please use extreme caution to help
avoid damage to the vehicle. In this case, the vehicle should be towed w ...
