Giulietta dash lights

[john m]

Hi guys,
this is my first posting and I need help in solving a small mystery. Can anyone tell me why the red "tell tail" lights on my '84 2.0l Giulietta turn on when one of the components are in use? Eg. the brake light, handbrake, headlight. I have double checked these and found them to be all working properly. Is there a circuit board that controlls the red lights if so where is it located?
Also, does somebody have an owners manual that I can copy?
Any help would be much appreated.