OBD Auto Doctor

OBD Auto Doctor transforms your Android device into a professional automotive diagnostic scanner. Connect via an ELM 327 adapter to access your vehicle's On-Board Diagnostic system and monitor everything from engine performance to emissions readiness.

Diagnose and monitor your vehicle with precision. Read diagnostic trouble codes and freeze frame data to identify issues before they become expensive repairs. View readiness monitor status to confirm your car is prepared for emissions testing. Access real-time sensor data—engine coolant temperature, torque, fuel consumption, and more—displayed in numerical or graphical formats. The built-in database contains over 18,000 trouble codes, including thousands of manufacturer-specific codes, so you understand exactly what your vehicle is reporting.

Take control of your car's performance and maintenance costs. Monitor fuel consumption while driving to identify inefficient patterns and adjust your habits accordingly. Track live OBD parameters on a customizable dashboard to spot abnormalities as they occur. Initiate advanced service routines such as evaporative system leak tests, particulate filter regeneration, and inducement system reinitialization. The app supports multiple electronic control units, including engine and transmission systems, giving you comprehensive insight into your vehicle's operation.

Capture and share diagnostic data whenever you need it. Record sensor readings and export them as CSV files via email for further analysis or to share with your mechanic. Read your vehicle's identification number (VIN), calibration identifications, and calibration verification numbers directly from the engine control unit. Keep detailed records of your car's health over time to track trends and plan maintenance.

OBD Auto Doctor works with all cars worldwide that support OBD2 or EOBD standards. The app requires a separate Bluetooth, BLE, or Wi-Fi enabled ELM 327 compatible scan tool plugged into your vehicle's diagnostic port. Using a genuine adapter ensures reliable communication and accurate readings. Note that the app displays only the data your vehicle's systems provide—not all features apply to every car.

The app is free to download and use with core features available to all users. A subscription option unlocks additional capabilities for power users and professionals who need advanced diagnostics. OBD Auto Doctor puts professional-grade automotive diagnostics in your pocket, helping you understand your vehicle, save on fuel costs, and stay ahead of maintenance issues.