OBD II is no longer used merely by professionals and enthusiasts to repair vehicles. OBD II information is widely used by vehicle telematics devices that monitor fuel efficiency, perform fleet tracking, prevent unsafe driving, as well as those for remote diagnostics and by pay-as-you-drive insurance.
Although OBDII standard is not intended for the above purposes originally, it now commonly supports OBD II data such as vehicle speed, RPM, and fuel level allow GPS-based fleet tracking devices to monitor vehicle idling times, speeding, and over-revving.
By monitoring OBD II fault codes, an insurance company can know immediately if one of its vehicles has an engine problem and by interpreting the code they can know the reason of the problem. OBD II is also monitored to block mobile phones when driving and to record trip data for insurance purposes.