Since the 1980's standardized Onboard Diagnostic systems Actron Code Reader—first OBD-I and currently OBD-II—mandated for virtually all cars and light trucks have provided automotive technicians with insight into the increasingly complex inner workings of modern passenger vehicles.
On the other hand, most consumers are totally unaware of these systems, with the only indication that there may be a problem with their vehicle coming to their attention when "check engine"/malfunction indicator light (MIL) is illuminated on the dashboard.
They all display emissions status as well, which can save time and money when renewing your vehicle's registration. Each Actron scanner also provides access to RepairPath.com, an online service that provides additional diagnostic and repair information.
have you seen the Actron Code Reader video, if not watch it or if you want to learn more click the link above
https://www.youtube.com/watch?v=syO522vUtcY
The Actron CP9550 OBD-II PocketScan Plus is the most advanced, powerful and compact automotive diagnostic trouble code (DTCs) reader available, but DTC's and descriptions are just a start of the tasks it can handle.
The CP9550 PocketScan is CAN (controller area network) compliant and provides freeze frame data, VIN info and performs the important task of (I/M) Inspection Maintenance-readiness testing by displaying the I/M readiness monitor status. Great for use before and after repairs are made, its small size makes it perfect for easy storage and use.
In this Actron Code Reader video, have some Key Features