Obd Mary - Car diagnostics & trip tracking

Obd Mary is a diagnostic scanner for EOBD/OBD-2 vehicles, featuring a gauge dashboard and trip computer with a variety of useful functionalities.

With the OBD2 Car Scanner OBD Mary, you can not only retrieve and erase OBD-2 Trouble Codes but also perform diagnostics on various vehicle ECUs including ABS, SRS, Airbag, HVAC, and more.

This Car Scanner supports multiple 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 points to note:

1.An ELM327 Bluetooth or Wi-Fi adapter is required to connect this application to your vehicle.

2.Your vehicle may include multiple ECUs, so ensure you check all of them.

3.ELM adapters version 2.1 can sometimes be problematic; it is advisable to opt for version 1.5 if possible.

Quick start instructions:

1.Download the application.

2.Insert the ELM327 adapter into your vehicle's 16-pin diagnostic connector.

3.Turn ON the ignition.

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

5.Choose the discovered ELM327 adapter in the app's settings.

6.Attempt to connect!

Diagnostics capabilities:

You have the ability to read and reset trouble codes from OBD2 compliant control units. You can view descriptions of fault codes and search for them online with just a click. In the event that a DTC is triggered, freeze-frame data can be accessed. Live parameters such as speed, RPM, MAF, and coolant temperature can also be monitored.

Dashboard functionality:

Utilize our OBD2 app as a gauge dashboard by creating your personalized set of gauges. Nearly all gauge parameters can be customized, including sizes, colors, stroke positions, arrows, texts, labels, backgrounds, and more. You can resize and reposition gauges in edit mode using your fingers to achieve your desired layout. Enjoy customizing your style!

Trip computer features:

Manage your trips with the Obd Mary app and ELM327 adapter. By keeping the adapter connected in your car permanently, the app can link up with your vehicle and record your trip information such as:

- trip duration;

- fuel consumption;

- cost of fuel;

- average speed;

- maximum speed, etc.

Full version availability:

Purchase the full version of the Obd Mary app to access complete functionality without any advertisements. Your purchase will help support future updates and enhancements. Thank you.

Neurosurgeon with a mechanical heart

In the digital dissection experiment under the hood, this OBD-II decoder is like a handheld vehicle neurology center. When the ELM327 adapter is inserted into the diagnostic interface, the car suddenly sheds its steel shell, revealing the cyborg nature of the CAN bus signal flowing - the pulse vibration of the ABS anti-lock braking system, the pressure pulsation of the turbocharger, and the bioelectric rhythm of the battery pack, weaving into a brainwave map of mechanical life on the customized dashboard. The most shocking is the "fault gene editing" function: a sudden oxygen sensor error during a high-altitude self-driving trip was traced back to the air pressure mutation node at an altitude of 2,700 meters through real-time data streams. The operation of clearing the fault code is like giving electronic acupuncture to the powertrain, allowing the V6 heart to regain a pure breathing rhythm.

As a believer in modification culture, its "parameter sculpture" system opens a new dimension of human-vehicle dialogue. When customizing the instrument cluster, the turbo pressure gauge is reshaped into a volcanic lava flow meter, and the air-fuel ratio curve is transformed into a heavy metal score waveform. In the tuning ceremony in the late night garage, the cyclonic dance of the intake duct is reversely deduced through the MAF sensor data stream, and the millisecond-level fine-tuning of the knock feedback is combined to make the old performance car burst out with the nerve reflex speed that is not inferior to the new supercar.

In the poem of the intercontinental highway, it is transformed into a mobile mechanical archive: the vibration of each gravel road on the Silk Road is compiled into a suspension health index by the "trip black box", and the continuous curve data across the Rocky Mountains is generated by the G-force analysis module. Contour map of tire wear. In a sudden gearbox setback crisis, the "ECU perspective mirror" function instantly locates the nano-level deviation of the valve body gap, locking the lesion three hours earlier than the 4S shop diagnostic computer, and the saved towing fee is turned into a craft beer carnival fund for the border motel.

For data alchemists, the "multi-protocol translation" matrix can be called the United Nations of automobiles: from the encrypted CAN message of the Stuttgart sports car to the stubborn K-line signal of the Siberian off-road vehicle, they are all deciphered into a unified data poem. The "Freeze Frame Retrace" function condenses hundreds of parameters at the moment of the fault into amber, and reproduces the quantum entanglement state of the spark plug through time slicing technology, giving the mechanical fault analysis the dramatic tension of criminal investigation.

The most profound magic of this mobile workshop is to transform the cold DTC code into a narrative of empathy between people and cars - when the "fuel consumption electrocardiogram" reveals the fuel-saving breathing method of urban commuting, the subtle adjustment of driving habits can extend the refueling cycle by a quarter; and the annual driving report generated by "Trip Computer" superimposes the 3D path cloud map and G-force hot zone, making the 100,000-kilometer journey evolve into a stream of consciousness epic co-authored by tires and asphalt. Holding this digital stethoscope compatible with more than 70 brands, I finally understand the ultimate romance of internal combustion engine civilization: each fault code is a sonnet confessed by the mechanical body, and each data reset is a recovery love letter written to the steel partner.