Features 1. Data stream read 2. The meanings of DTC is displayed in text mode 3. Support 4 types of Standard OBD-II protocol(ISO-1941-2, KWP2000, VPW and PWM) 4. Professor mode included 5. Data base of DTCs is expanded 6. Highly reliable and accurate 7. Easy to use with one plug-in 8.Works on all 1996 and newer cars & trucks that are OBD II compliant 9.Automatic refresh updates data every 15 seconds when connected to the vehicle 10.Will clear and turn off Check Engine light 11. Stand-alone unit with no need for an additional laptop computer to operate 12. Small in size and conveniently fits in your palm 13. Specially designed for DIYers and car-owners 14. Safely communicates with the on-board computer 15. No batteries needed-power provided via detachable OBD II cable 16. One-year warranty Will This Code Reader Work with My Car?(MUST READ) The V-Checker OBD II Code Reader is specially designed to work with all OBD II compliant vehicles. It is required by EPA that All 1996 and newer vehicles (cars and light trucks) sold in the United States must be OBD II compliant and this includes all Domestic, Asian and European vehicles. A small number of 1994 and 1995 model year gasoline vehicles are OBD II compliant. To verify if a 1994 or 1995 vehicle is OBD II compliant, check the Vehicle Emissions Control Information (VECI) Label which is located under the hood or by the radiator of most vehicles. If the vehicle is OBD II compliant, the label will designate "OBD II Certified". Additionally, Government regulations mandate that all OBD II compliant vehicles must have a "common" sixteen-pin Data Link Connector (DLC). For your vehicle to be OBD II compliant, it must have a 16 pin DLC (Data Link Connector) under the dash and the Vehicle Emission Control Information Label must state that the vehicle is OBD II compliant. This label is located on the inside of the hood on most vehicles. VEHICLE COVERAGE GM ''