You can check youR worK with vcds, all kessy parameters can be measured using vcds, it is important to do the coding right and then any errors related to the kessy will be visibile. After you finish the installation you can say it is working if:
1. You can stop the car using the "Stop Engine" button
2. When you try to start the car you will get "no key identified" message on the FIS.
I was wondering what is the purpose of door exterior handle switch (F272, F273, F274, F275). I though this is part of the standard equipment (without kessy). But when I disassembled my door I realized it does not exist on my standard handles. Why do we have both this microswitch (which gets pushed when I try to open the door with the handle) and a touch sensor in each handles ? This switch is not mentioned in the docs (only in repair manual, and wiring diagrams in ELSA).