Tailights Are On

Ok This Morning After Doing A Little Research I Now Know That The Problem Is In The Brake Lights. Large Brighter Of The Two Filaments Is Brakes. So Checked Cont In The Brake Switch And Its Fine, So I Am To Beleive Its A Ground Somewhere But Checked Them All, Not Real Good At The Schematic's Of A Light Diagram. Any Help Would Be Greatly Appreciated. I Do Have One Of The Net.