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.
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Getting started
Use the controls in the center console (3) or the
buttons in the steering wheel keypad to
access, navigate and make selections in the
hands-free system’s menus.
Activating/deactivating
A short pr ...
Environment
Volvo cares passionately about environmental protection, whether it's in
reducing pollutants from its vehicles, or cutting pollutants entering the car.
The well-being of people is at the core of e ...
Introduction
The infotainment system's voice control feature
enables the driver to voice-activate certain
functions in a Bluetooth®-connected cell
phone or the navigation system.
NOTE
• The information in ...
