Hello, regarding program paid for scanning are copies with Internet crack, Digimoto, PCMScan Data Pro, Scanxl, Diagnose 41, Scantool22, Obd2ceazy
etc. They require an electronic interface to connect to the car. The cheapest and easy to locate are the ELM327 version 1.3 or 1.5 or its Chinese clones that bring basic software.
On the Internet are the planes of the elM interface module of several models but in the main chip it is not commercial, it is only sold by a factory, it is an integrated Pal * Logic Array program with the anticopia protected program.
The interface is worth about 39 dollars in China. in transport as 35 more and delay 5 days by DHL and arrives at the door of your house. This artifact reads fault codes, motor parameters, not all and reset the checine light with its original program.
With other programs he does more things.
To see the cheap interface and scanner, look at this page
www.ipmart.com
Search Cars and then Diagnostic Tools in the upper horizontal bar.
They are distributors in Malaysia and China of everything and sell per unit if you want
luck