Know your vehicle better. Turn your Android smartphone or tablet into a sophisticated diagnostic scan tool and real-time performance monitor. The VP11 plugs directly into your vehicle and connects via Bluetooth to an OBD II app on your Android device. Whenever you have a check engine light on or want to see how your car is behaving, the VP11 is a useful device for you. Compatible with cars and light trucks manufactured in the EU and UK since 2001 (gasoline) and 2004 (diesel). Note: 1. This OBD adapter requires a compatible third-party app. Recommended apps include Car Scanner ELM OBD2, Torque Lite, OBD Fusion, and Inforcar, available on the Google Play Store. 2. It only works with Android and Windows devices. Apple iOS devices are not supported. Consider the VP01 WiFi version or the OBDCheck BLE Bluetooth 4.0 version if you use an iPhone or iPad. Android head units are not recommended. 3. If the device is paired with your Android phone but only shows as paired or previously connected, it is still connected via Bluetooth. You can launch the app to establish communication. The VP11 allows you to read trouble codes that cause the check engine light to illuminate. You can identify possible causes and fix simple issues yourself, potentially saving a trip to the repair shop and reducing repair costs. When used with a compatible OBD app, you can: - Read and clear engine trouble codes - Reset the check engine light - View freeze frame data - View live sensor data - Create custom dashboards - Monitor vehicle readiness for emissions testing - View, graph, and log real-time sensor readings - Monitor fuel consumption - Retrieve vehicle information such as VIN and calibration IDs Compatible apps: Android: Torque Lite, OBD Fusion, DashCommand, Car Scanner ELM OBD2, JScan, Dr. Prius, Inforcar, AlfaOBD, VAG DPF, FAPlite, EVNotify, OBD Auto Doctor, Piston, LeafSpy, EOBD Facile, CanZE, Car Gauge Pro, etc. Windows: OBD Auto Doctor, EOBD Facile, Car Scanner, etc.