The normal way to do this is to open a bleeder screw slightly at one front or rear wheel (making sure that no air gets into the system), then step on the brake pedal until the light goes out. Then close the open bleeder screw.
If after several pumps the light does not go out, close the bleeder at that wheel and open one at the other end of the car (again making sure that no air gets into the system). Repeat the pedal pumps until the light goes out. Close the bleeder screw.
If you remember which brakes you bled last (front, probably) you could start the procedure at the opposite end of the car (rear bleeder screw), since it's likely that the combination valve thought that the front brakes were lost when you bled them.