Just remember that the tail lights and the brake lights are different circuits! The tail lights are not just the brake lights but dimmer; they\'re separate filaments on the same bulbs (or separate bulbs but usually just separate filaments.) You might be right about the relay but if fixing a ground cured the problem, the relay might not be the issue. Or it might and you\'ve managed to work around it at the expense of safety, but aren\'t the tial lights on a fuse too? They were on my 1998 Corolla.