What is KESSY and how does it work?
Updated: Aug 4, 2020
Not many people are aware with this term so we will explain what it is and how it works.
KESSY is a system which is used in V.A.G cars and allows the user to start the car with the push engine start button or it also gives the user the option to start the car using a bladed key in the traditional way by inserting it into the cars ignition barrel then twisting to start. However it is the Proximity/Keyless functions that is used most and what the system is intended for.
We have just had a brief over view of how the system works/used and what makes a KESSY system. now we will explain exactly in detail how the proximity/keyless side of the key works. KESSY provides convenient access to your V.A.G vehicle. The user places the key in his pocket or in hand. Meanwhile, the V.A.G vehicle is fitted with a starter module and signals called ‘rolling codes’ they are exchanged between the key and the starter module in communication. When the key is within a 1.5 meter (5 foot) radius of the V.A.G vehicle, the rolling codes tell the starter module to open and the car can allow the user access to open the doors and start the engine. This includes the boot.
Also as a tip, the sensors will not lock the doors if your car key is left inside your V.A.G vehicle by mistake.
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