I have Grande punto, 1.2 Active, 2007. year made.
Fiew days ago I`ve bought an universal remote lock module for my car, and managed to connect it with cars central locking mechanism, except tailgate lock mechanism.
I need wiring diagram and schematics of cars central locking system, especially of tailgate bootlock system and if anybody knows what kind of signal triggers tailgate lock (is it 0V, 12V, or some other voltage and what kind of pulse, i am not talking about power supply-I know it is 12V, i am talking about command signal).
Thanks.

does this help?

https://www.fiatforum.com/grande-punto/311534-bootlight-powerconnector-dont-work.html?p=3114924

Thanks dude, this looks promising! I will try it tomorrow and let you know if it works, today is raining whole day.
Do you know what kind of unlock pulse computer sends to lock mechanisam- is it positive or negative puls? And what is the value of it?