Today's modern vehicles and the systems that make them work are becoming more and more complex; immobilizer and anti-theft system are yet another example of this. Advances in key encryption, the advent of systems like smart entry and smart key technologies have changed how we go about diagnosing, repairing and programming these vehicles. Furthermore, the proprietary nature of the OEM's technologies and the restricting of access to repair information, tooling and security PINs is proving to make servicing these vehicles increasingly more difficult. In this article we are going to investigate some of the history of these systems as well as the operation and diagnosing of them when a problem occurs. Moreover, we will investigate some of the radical changes in how we obtain security information and what we will be required to do moving forward.
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