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:

    Belt check
    Check the belt regularly to make sure it is in good condition and is clean. A worn or dirty belt can cause poor cooling and low alternator output as well as impair the operation of the power steer ...

    Other alarm-related functions
    Automatic re-arming If the doors are unlocked, the locks will automatically reengage (re-lock) and the alarm will re-arm after 2 minutes unless a door or the trunk has been opened. Audible/visual ...

    Cleaning the sensors
    Location of the front sensors Location of the rear sensors The sensors must be cleaned regularly to ensure that they work properly. Clean them with water and a suitable car washing detergent ...