Presented by Ashcon Mohseninia

With the ever increasing complexity and propriatary implementations of car diagnostic software, OpenVehicleDiag tries to provide a universal and open source tool for running car diagnostics, based upon the Passthru API, converting propriatary data formats into a common JSON schema. In the first part of this presentation, I will be discussing the process of creating an open source Rust based Passthru driver for Macchina’s M2 Under-the-dash ODB-II adapter, and the process of unoficially porting the API to UNIX systems. In the second half of the presentation, I will be discussing the process of creating OpenVehicleDiag using a Rust Passthru API backend and a JS Electron GUI, along with the process of converting Daimler CBF files into a common JSON format that can be applied universally to other OEM’s.

Ashcon Mohseninia is a computer science student at the University of Reading who has a passion for car hacking and open source software. Most noticeably known for installing a totally custom infotainment system on his Mercedes and reverse engineering its entire CANBUS network to achieve a ton of cool features that even modern cars lack. He got into open source car diagnostics after creating a custom Passthru API adapter from an Arduino in order to clear error codes from his car’s TCU after a simple mechanical fault rendered the car useless, and Mercedes attempted to charge a ludicrous amount of money to simply clear the error code stored on the TCU module.