Probally yes, not very important that iso code is unkown.

Head to the fiat forum. You will find a Multiecuscan members chart:

Link: https://www.fiatforum.com/directory/categories/multiecuscan-register.4/

Does it say Multiecuscan MULTIPLEXED at the top left corner?

Hi,

With Alfa Romeo Giulia you can't activate remote start if the car is equiped with Adblue.
Maybe something simular?

Good luck

It is very dangerous to just paste a proxy from a different car into another car. Do you have the original proxy?

Latest generation Fiat Talento is basicly an Renault van. Not much is supported

Me again, I tried again with the (good) red cable called OBDLink SX but there is still no connection to the ECU. Tried also with the green adapter, same thing. My problem is, that the ECU is not releasing the fuel pump. When I bridge the fuel pump relais, engine works fine. So, the ECU is not dead,...

You need to select fiat ducato of the same spec.

Have performed a few adaptations/service resets/ proxy alignment to Peugeot Boxers with ducato selected as vehicle.

I am thinking a software bug. Try to update to the latest version 5.3 instead of 4.6.

Probally will be in the next MES version, new versions come out sometimes in half a year and sometimes a year. You can check the history here: https://www.multiecuscan.net/ReleaseHistory.aspx