If you want to program new key,maybe you need to read out the PIN code,because when you program keys into immobilizer,you should enter the pin code.So here i want to share you VCP another function:how to use VCP System to read immobilizer PIN code for EDC15P EDC16.
Vehicles with EDC15P+ and EDC16 ECUs
Connect VCP interface to vehicle and select “Guided functions assistant”
Select “Other” and select “Read immobiliser PIN from EDC15P+/EDC16”
The procedures reads immobiliser PIN code from Engine ECU EDC15P+
The engine is not running
Choose the Engine Control Unit:EDC15/EDC16 TDI
Flash boot loader is initiated