ROUTING STRUCTURE OF WIRE HARNESS OF SENSOR FOR DOOR OF AUTOMOBILE

To provide an inexpensive routing structure, which is improved in sealing performance with no harm in noise insulation performance, of a wire harness of a sensor for a door of an automobile. The routing structure includes a wire harness of a sensor. The sensor couples to a flange of a rear door of the automobile with a bracket, and detects an electric signal which provides an indication that an object is between the rear door and a front door. The wire harness passes through a through hole, provided on an inner panel of the rear door, and is routed into a space between the inner panel and an outer panel. The through hole is a service hole, provided on a door side surface of the inner panel.