IV. Background

There is a possibility that the coil wire of the electric motor installed in the Water Pump for the Hybrid System may have been scratched during the coiling manufacturing process at the supplier. In this condition the coil wire may corrode at the scratched portion and in some cases break. If this occurs the water pump could stop leading to the illumination of various warning lights in the instrument panel. In limited instances a short circuit can occur between adjacent coil wires resulting in an open fuse for the electric power supply circuit. If the fuse is open the hybrid system will stop while the vehicle is being driven which may increase the risk of an accident.