Patent ID: 8561296

Claim:
A method for producing a wiring harness, wherein the wiring harness comprises: a plurality of high-voltage electrical power lines extending from a font side of an inner vehicle body of a hybrid vehicle or an electric vehicle through an under floor disposed at an outside of a vehicle body frame to a rear side of the inner vehicle body to connect a battery and an inverter or to connect a motor to the inverter; a protection member for protecting the high-voltage electrical power lines composed of a corrugate tube protecting the high-voltage electrical power lines together with no slit, and bendable at a desired position; and a waterproof grommet to be watertightly assembled with a through hole of a vehicle body panel communicating with the inner vehicle body, said method comprising the steps of: watertightly assembling the waterproof grommet with the corrugate tube in a middle thereof so that the corrugate tube is extended back and forth of the waterproof grommet in a first production process; followed by inserting the high-voltage electrical power lines from one opening of the corrugate tube extending substantially straight to the other opening of the corrugate tube in a second production process; and treating the ends of the high-voltage electrical power lines exposed from both the one and the other openings in a third production process after the second production process.