How do states use OBD II for emission inspections?

How do states use OBD II for emission inspections?  - Emission inspection readiness - Maintaining your car - Maintenance and specifications - Volvo XC60 Owners Manual - Volvo XC60

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:

    Volvo Sensus
    Center console control panel 1 - Volvo Navigation System (VNS)* – NAV: see the separate VNS manual for operating instructions. 2 - Infotainment (RADIO, MEDIA, TEL*): see the infotainment system ...

    Marker lines
    The PAC system's lines 1 Marker line for a 1-foot (30-centimeter) zone behind the vehicle 2 Marker line for the clear back-up zone 3 "Wheel tracks" The solid line (1) indicates a zon ...

    Fault tracing and actions
    If the message Radar blocked See manual is displayed, this means that the radar signals from the sensor have been obstructed and that a vehicle ahead cannot be detected. This, in turn, means that ...