Need Automotive Troubleshooting Software

Hello,

I am looking to buy a Automotive Troubleshooting Software for Janpanese Cars. The software tells the user what is wrong with the car by plugging it in to the car.

Can anyone suggest which company I can buy this from and the names of any software that woyld be good to use?

Thanks

Yours Respectfully
Avin Sinanan

ask the guys at autozone what they use. they have the obd-2 diagnoser thing that deciphers the code right there. i pulled a CEL and the guy said my vacuum lines were leaking or clogged. i knew that was bullshit so i tightened my gas cap and he reset the code(using the diagnostic tool). i was impressed that the thing could pull, decipher and reset the code all in one nifty lil gadget.