Auto elec gurus. My brake light fuse blows as soon as I turn the ignition on. I know it has a short somewhere and I’ve searched for a short to earth on all the wires without success. When I put a multi meter over the wires, both ends of the fuse, I get resistance. Even when I put the multi meter over both wires to earth and one wire to the other, same result. Could this mean it is one of the brake light switches that is causing the fuse to blow? Or am I just doing some wrong?