Note: KONNWEI KW890 is a three-in-one machine that combines car diagnostic tools, car battery testers, and maintenance light reset (oil reset). This product can only detect 12V vehicles that comply with the OBD2 and EOBD standards. It supports the following five protocols: CAN, J1850 PWM, J1850 VPW, ISO9141, and KWP2000. This tool can detect both gasoline cars, diesel cars, and hybrid vehicles. All 24V large vehicles, trucks, and electric vehicles are not detectable. KW890 supports seven languages: English, French, German, Spanish, Russian, Italian, and Polish. It offers free online upgrades: http://www.konnwei.com