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's OBD II port and connects via Bluetooth to a compatible OBD II app on your Android device. When you have a check engine light or want to monitor your vehicle's performance, the VP11 is a useful diagnostic tool. Compatible with cars and light trucks manufactured in the EU and UK from 2001 (gasoline) and 2004 (diesel) onwards. 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. This device is compatible with Android and Windows devices only. Apple iOS devices are not supported. Consider the VP01 WiFi version or the OBDCheck BLE Bluetooth 4.0 version for iPhone or iPad use. Android head units are not recommended. 3. If the device shows as paired or previously connected on your Android phone, it is still connected via Bluetooth. Launch the app to establish communication. The VP11 allows you to read diagnostic trouble codes that trigger the check engine light, helping you identify potential issues and resolve simple problems without a mechanic, saving time and money. When used with a compatible OBD app, you can: - Read and clear engine trouble codes - Reset the check engine light - View freeze frame data - Monitor live sensor data - Create a custom dashboard with selected PIDs - Check vehicle readiness for emissions testing - View, graph, and log real-time sensor readings - Monitor fuel consumption - View oxygen sensor test results (Mode 05) - View onboard diagnostic monitor test results (Mode 06) - 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.