Nissan Almera 2002 1.8L

I apologize brothers esk I have this vehicle mentioned above but overnight no longer kiso arrankar is activated the immobilized march but not Arranka. I remember k I made esk activate the alarm to close the morning sig. I no longer get rid of the esk problem I do not have the control of distance and the key K I bring is that of Valet, I bring an external alarm but I already disconnect it and nothing, something else: I have no communication with the computer and someone m could help at some tip or the vehicle diagram I will thank you very much thanks.