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:
Automatic Locking Retractor/Emergency Locking Retractor (ALR/ELR)
To make child seat installation easier, each
seat belt (except for the driver's belt) is equipped
with a locking mechanism to help keep the
seat belt taut.
When attaching the seat belt to a child
...
Audio volume and automatic volume control
The infotainment system compensates for disrupting
noises in the passenger compartment
by increasing the volume according to the
speed of the vehicle. The level of sound compensation
can be se ...
Before a long distance trip
It is always worthwhile to have your vehicle
checked by a trained and qualified Volvo service
technician before driving long distances.
Your retailer will also be able to supply you with
bulbs, ...
