[emtezet]

Hello, 
i have a question about running diagnosis on ecu that is not connected to the car.
The thing is about xenon lamps from 500 abarth. The ecu controlling the headlamps is in the left headlight and according to wiring diagram it is diagnosed by k line. There are no more other connections to BCM or other modules visible on the diagram.
The headlamps are connected with each other, also there are leveling sensors connected to the left lamp. I have connected everything to a power supply with about 13,5V. I also took the obd port and connected the positive supply to the 16th pin, and negative to pins 4 and 5. The k line from pin 7th of my plug i have connected to the k line of the lamp.
I have a Viaken KKL cable, and a free version of MES. The software sees the cable, but cannot connect to headlight ecu. My question is if it is possible to run diagnosis in this way, or there is a need of some more connections to be made, or it is impossible at all to connect without the car?

Thank You in advance for you answer.