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:
Location of the bulbs in the headlighthousing
1 Low beam headlight/Active Bending Lights
2 High beam headlight (daytime running light
on models with Active Bending Lights)
3 Turn signal
4 Parking light
5 Side marker light ...
Tire sealing system–temporarily repairing a flat tire
Temporarily repairing a flat tire is done in two stages:
• Stage 1: The hole is sealed by pumping sealing compound into the tire. The
car is then driven a short distance to distribute the sealing ...
Overview
Volvo's boldly styled and intelligently configured Volvo XC70 AWD
(all-wheel-drive) estate offers significantly improved levels of
all-road-all-weather ability and an engaging driving experience c ...
