No, no tail light unless key is in "P" position, horn, head lights, t sigs, brake lights, starter motor, ign. all function, as they should, rear, always on marker light does not work in the ign key s run position, but does alight in park light third key position, don't much fricken matter now, its gonna rain for a week starting tonight, I messed with it for 9 hours, beyond my comprehension, I need some cheese with my whine