Braking problem

Hi, when I press my brake the car pulls to the left, upon inspection of the right front caliper I noted that the brake fluid has no pressure at the bleeder valve. I checked the rubber hose that is fine. I even checked the metal brake pipe that is clear. What I did was trace the metal pipe to the abs module what I did notice is that when I open the metal pipe from the ABS unit the brake fluid drips out. There is no pressure only for the right front all the other three work fine What can I do to resolve this issue? Is there a way to bleed the module? I suspect a sticker valve or air in the unit. Will a complete brake flush. Help.