Advanced OBD2 car diagnostics tool featuring DTC scanning, customizable dashboards, and ELM trip computer functionality.
OBD Mary is your comprehensive EOBD/OBD-2 diagnostic scanner, featuring gauge dashboards, trip computing, and multiple innovative capabilities.
Our OBD2 Car Scanner OBD Mary enables not only reading and clearing diagnostic trouble codes but also performs advanced vehicle ECU diagnostics including ABS, SRS, Airbag, HVAC systems, and more.
Supported vehicle brands include: Acura, Alfa Romeo, Alpina, Audi, BMW, BYD, Buick, Cadillac, Changan, Chery, Chevrolet, Chrysler, Citroen, Dacia, Daewoo, Daihatsu, Daimler, Datsun, Dodge, DS, Exeed, Fiat, Ford, Geely, General Motors, Genesis, GMC, Great Wall, Haval, Holden, Honda, Hummer, Hyundai, Infiniti, ISUZU, JAC, Jaguar, Jeep, JMC, Kia, KTM, Lada, Lancia, Land Rover, Lexus, Lifan, Lincoln, Lotus, Mahindra, Mazda, McLaren, Mercedes-Benz, Mercury, MG, Mini, Mitsubishi, Nissan, Opel, Peugeot, Pontiac, Porsche, Proton, RAM, Range Rover, Ravon, Renault, Rivian, Rolls-Royce, Rover, Saab, Samsung, Scion, Seat, Skoda, Smart, SsangYong, Subaru, Suzuki, Toyota, Vauxhall, Volkswagen, Volvo
Important Notice!
1. Requires ELM327 Bluetooth or Wi-Fi adapter for vehicle connection.
2. Your vehicle may contain multiple ECUs (electronic control modules) – remember to check all available modules.
3. ELM adapters version 2.1 may have compatibility issues – we recommend version 1.5 when possible.
Quick Start Guide
1. Download the application
2. Insert ELM327 adapter into your vehicle's 16-pin diagnostic port
3. Turn ignition ON
4. Pair your Bluetooth ELM adapter via Android device settings
5. Select paired ELM327 adapter in app settings
6. Initiate connection
Diagnostic Features
Read and reset trouble codes from OBD2-compliant control units with detailed descriptions and instant web search capability. Access freeze-frame data when DTCs are active. Monitor live parameters including speed, RPM, MAF, and coolant temperature.
Dashboard Customization
Transform your OBD2 app into a personalized gauge dashboard. Design custom gauge configurations with adjustable sizes, colors, positions, labels, backgrounds, and more. Easily reposition elements using intuitive touch controls.
Trip Computer
Track driving statistics with OBD Mary and your ELM327 adapter. Maintain continuous connection for automatic trip logging:
- Trip duration
- Fuel consumption metrics
- Fuel cost calculations
- Average speed
- Maximum speed and additional parameters
Premium Version
Upgrade to the ad-free full version to unlock all features while supporting ongoing development and improvements.
Developer Contact: Reach out via email using the dedicated button on the app's main screen.
What's New in Version 1.251
Last updated on Nov 10, 2024
New dashboard gauge templates
Expanded OBD-2 parameter support
Various bug fixes
