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:
Comfort and convenience
While the interior of the Volvo V50 Sportswagon places an emphasis on style,
form has not been allowed to take precedence over function. The fascia
ergonomics have been carefully designed and driv ...
Reprogramming a Single HomeLinkButton
1. Press and hold the desired HomeLink button.
DO NOT release the button.
2. The indicator light will begin to flash after
20 seconds. Without releasing the Home-
Link button, proceed with “Pr ...
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 ...
