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:
Vehicle event data (Black box)
Your vehicle's driving and safety systems
employ computers that monitor, and share
with each other, information about your vehicle's
operation. One or more of these computers
may store what they m ...
Using HomeLink
To operate, simply press and release the programmed
HomeLink button. Activation will
now occur for the trained device (i.e., garage
door opener, gate operator, security system,
entry door lock, ho ...
Front seats
Front seats
1 Lumbar support: turn the control for firmer
or softer lumbar support.
2 Front-rear adjustment: lift the bar and
move the seat to the position of your
choice.
3 Raise/lower fro ...
