The THINKCAR ThinkDiag is a professional-grade, Bluetooth OBD2 diagnostic scanner designed for mechanics, automotive technicians, and serious DIY users who need real diagnostic power in a compact tool. Paired with the THINKCAR mobile app, ThinkDiag delivers full system diagnostics, advanced service resets, ECU coding, and bidirectional actuation tests using your smartphone or tablet. Unlike basic code readers, ThinkDiag accesses all vehicle systems including engine, transmission, ABS, SRS, BCM, SAS, TPMS, and more. Users can read and clear codes, view live data, perform active tests, and complete common maintenance services such as oil reset, brake bleed, throttle relearn, battery registration, and DPF reset. Auto VIN detection quickly identifies vehicles to reduce setup time and improve workflow efficiency. ThinkDiag is ideal for professionals who want dealership-level diagnostics without investing in bulky scan tools. Its compact size makes it easy to keep in a toolbox, glove box, or service cart while still delivering advanced functionality when connected to the THINKCAR app. Compatible with iOS and Android devices, ThinkDiag supports a wide range of domestic, Asian, and European vehicles. Whether diagnosing check engine lights, validating repairs, or performing maintenance services, ThinkDiag provides reliable, professional diagnostics at a practical cost.