Quote Originally Posted by nubcake View Post
Immo will not prevent the car from starting, it will kill the engine split second after it had already started.
So you can safely rule that out.

Did I understand correctly, that you tried jump-starting, but it didn't work?
How does the voltage gauge in the dash behave when you have ignition on and jump it from another source?
Honestly, I wasn't paying attention to the voltage gauge before connection and after connection of cables, as well as after turn of the key (I don't think I am going to observe any change upon the turn of the key to crank). I'll check and post observations.