An effective OBD2 car diagnostics tool, DTC scanner, customizable dashboard, and ELM trip computer.

Obd Mary is an EOBD/OBD-2 car diagnostic scanner, gauge dashboard, and trip computer packed with a variety of useful features.

With the OBD2 Car Scanner OBD Mary, you can not only read and clear OBD-2 trouble codes but also perform diagnostics on various vehicle ECUs such as: ABS, SRS, Airbag, HVAC, and more.

Our Car Scanner OBD Mary supports brands including: 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 Notes:

1. You need an ELM327 Bluetooth or Wi-Fi adapter to connect the app to your vehicle.

2. Your vehicle may have multiple ECUs (electronic control modules), so be sure to check all of them.

3. ELM adapters version 2.1 are often faulty, so choose version 1.5 if possible.

Quick Start Guide

1. Download the app

2. Plug the ELM327 adapter into the 16-pin diagnostic connector in your vehicle

3. Turn the ignition ON

4. Find your Bluetooth ELM adapter in your Android device settings

5. Select the detected ELM327 adapter in the app settings

6. Attempt to connect!

Diagnostics

Read and reset trouble codes from OBD2-compliant control units. View fault code descriptions and search the internet with a single tap. Freeze-frame data is available when a DTC is active. Monitor live parameters such as speed, RPM, MAF, and coolant temperature.

Dashboard

Use our OBD2 app as a gauge dashboard. Create your personalized gauge set and customize nearly all parameters—sizes, colors, text, labels, backgrounds, and more. In edit mode, simply resize and reposition gauges with your fingers to fit your layout. Make it your own!

Trip Computer

Track your trips with the Obd Mary app and ELM327 adapter. Keep the adapter connected in your car, and the app will log trip data automatically:

- Trip duration;

- Fuel consumption;

- Fuel cost;

- Average speed;

- Maximum speed, and more.

Full Version

Purchase the full version of Obd Mary to unlock all features with no ads. Your purchase supports ongoing development and maintenance. Thank you.

Contact the Developer: Feel free to reach out using the contact button on the main app screen. Please use the email option.

What's New in Version 1.251

Last updated on Nov 10, 2024

Added gauge templates to the Dashboard
Added more OBD-2 parameters
Fixed several bugs