From 1980, car manufacturers have begun to incorporate massively electronics in their vehicles, in particular through the use of an engine control computer (also called injection computer, originally used in gasoline) for to manage the operation of the engine and diagnose its failures.The onboard diagnostics have become progressively more and more sophisticated, to allow engines to meet the thresholds of polluting emissions regulations becoming stricter. In the US, it is the Agency for the Protection of the Environment established the first standard thresholds.Thereafter, regulatory requirements went beyond those simple thresholds and spread the methods and means to implement to detect any loss of ability to control emissions and warn the user. This regulation of OBD diagnostics was born in California in 1985.
Outils de diagnostic OBD
Landed tools to diagnose the state of a vehicle using the standard diagnostic connector provided for this purpose, thereby determining the necessary repairs in case of failure.
Garage, this tool is generally called "bag" due to its shape and its transport container like a suitcase.
These diagnostic tools are also available for some years to the general public via existing IT applications across multiple mobile platforms and PC (Android, Windows, iPhone ...). To use them, buying an adapter (USB cable or via Bluetooth) to connect the OBD-II interface with the computer equipment is required eg ELM327.
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