?[Wide Diagnostic Coverage]: Works on all 1996 and Newer (Cars and 12V Light Trucks) that conforms to OBDII Standard, including CAN, VPW, PWM, ISO and KWP2000 protocols and CAN protocols. Supports English, French, German, Spanish, Italian, Russian. ?[Turn off all check engine lights]: Quickly and accurately to read the engine fault code, built-in the DTC database of over 3000 code definitions, which it is easily to find out the root cause of the Check Engine Light (MIL), and turn off it instantly by erasing the trouble codes. ?[Smog Check Helper]: The fault code reader comes with I/M readiness status check function, that shows you whether all the emission related systems and components are operating within allowable limits, which help your vehicle ready pass the annual smog check!