In practice all new cars being offered currently in automotive markets are stuffed full of electronics. Obviously, this cuts both ends. Significant and highly praised advantage of this solution is capability to find a defect very quickly. Disadvantage is of course a high repair cost in a professional service. Only such services are or will be able to do effective and proper repair. Electronic units being recently implemented cover all key vehicle assemblies and systems. They are responsible for proper brake operation, information on required oil change or brake disk replacement. However, they primarily control the work of vehicle engine and gearbox.
The gearbox controller is one of the most important component in each car, especially in cars equipped with an automatic gearbox. In this case the controller is the most important part of the entire transmission system deciding on engine performance and driving comfort. Driving of car with automatic gearbox and faulty controller cause hard gear changes and certainly unpleasant gear jerking. Quite typical is gear slide and improper gear oil adjustment. Another basic symptoms may be also automatic gear changing and difficulty with moving up a gear and problems with vehicle start-up.
Only proper condition of the gearbox controller will be able to ensure the the use of such solution is very comfortable and the full pleasure of driving. Cars with automatic gearbox, commonly called “automatics” allow the driver to be much more focused on traffic situations. This is very useful solution at the multitude of random events.