Cardiag : A free mobile application to diagnose your vehicle

CarDiag is a free and intuitive mobile application to diagnose your vehicle, which allows you to read and erase the fault codes and turn off the engine light independently.

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Cardiag : Turn off the check engine light



Cardiag : Read and erase the fault codes

Diagnose and Troubleshoot your Car Quickly

Equipped with an OBD2 bluetooth device, CarDiag provides a complete list of your car problems in simple and easy-to-understand terms.


Turn off the check engine light

The check engine light comes on to indicate a malfunction in the engine or the pollution control system. CarDiag allows you to reset this malfunction indicator lamp.


Before a Road Trip

A check-up of your car (fluids levels, temperatures, pressure …) before going on vacation to limit any risk of breakdown or incident on the road.

Car repair cost estimation at the nearest mechanic

Find the estimation of car repair cost at the nearest mechanic.


Tutorials for Do-it-yourself Auto Repair, and tips to buy Car Parts

Tutorials for Do-it-yourself Auto Repair, and tips to buy Car Parts.


Car Maintenance book

Car Maintenance book to keep track of your vehicle's maintenance.

Cardiag : Prerequisites

to use the Cardiag mobile application, you should :

  • Have an OBD-II compatible car : OBD-II is compatible with all US vehicle models since 1996, European since 2001 (diesel since 2003), Japanize since 2006.
  • Have an OBD-II Bluetooth adapter (ELM327) : easy to get and available for less than 10$.