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Discover the power of effective OBD2 car diagnostics with OBD Mary — your all-in-one vehicle diagnostic scanner, customizable dashboard, and advanced trip computer packed with essential features.
OBD Mary is a comprehensive EOBD / OBD-2 car diagnostic tool that goes beyond just reading and clearing DTC trouble codes. With this app, you can perform in-depth diagnostics on various vehicle ECUs including ABS, SRS, Airbag, HVAC, and more.
Supported Vehicle Brands
OBD Mary supports a wide range of automotive brands such as 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, and Volvo.
Important Notes
- You will need an ELM327 Bluetooth or Wi-Fi adapter to connect to your vehicle using this application.
- Vehicles often have multiple ECUs (Electronic Control Units), so be sure to check all available modules for complete diagnostics.
- ELM adapters with version 2.1 are known to have issues; if possible, opt for version 1.5 for better compatibility.
Quick Start Guide
- Download and install the [ttpp] app from your device’s app store.
- Plug the ELM327 adapter into your vehicle's 16-pin OBD2 diagnostic port.
- Turn on the ignition (no need to start the engine).
- Enable Bluetooth on your Android device and pair it with the ELM327 adapter.
- Select the paired ELM327 device within the app settings.
- Try to connect — once connected, you're ready to start scanning!
Diagnostic Features
With [ttpp], you can read and reset OBD2 trouble codes, view detailed fault descriptions, and instantly search online for solutions. The app also allows you to retrieve freeze-frame data when a DTC is active. Monitor live parameters such as vehicle speed, RPM, MAF, coolant temperature, and more — all in real-time.
Customizable Dashboard
Transform your mobile device into a personalized gauge dashboard with [ttpp]. Create your own layout by selecting from a variety of gauges and customizing nearly every aspect — sizes, colors, text labels, background themes, needle styles, stroke positions, and more. Easily resize and reposition each gauge using touch gestures during edit mode to design the perfect dashboard experience tailored to your preferences.
Trip Computer & Logging
Track your driving trips effortlessly with [ttpp] and your ELM327 adapter. Leave the adapter plugged in and let the app automatically log important trip data such as:
- Trip duration
- Fuel consumption
- Fuel cost
- Average speed
- Maximum speed
Full Version Benefits
Upgrade to the full version of [ttpp] and unlock all premium features without ads. Your purchase helps support ongoing development and improvements to the app. Thank you for being part of our community!
Contact the Developer
Have questions or feedback? Reach out directly through the in-app contact button or send us an email. We’re always happy to hear from our users and assist with any issues you may encounter.
What's New in Version 1.251
Last updated: November 10, 2024
- Added new gauge templates for the Dashboard
- Expanded list of supported OBD-2 parameters
- Bug fixes and performance improvements
