Electronic control apparatus for vehicle using water proof type housing sealing and method thereof

A method of manufacturing an electronic control apparatus, comprising:

• coupling a connector cover with a printed circuit board (PCB) configured to electrically control each part of a vehicle through a formed connector, the connector cover includes a connector part electrically connected with the PCB and a cover coupling part having a sealing material injection pipe, through which a sealing material is injected;
• fitting the connector cover having the connector part coupled with the PCB to a housing body having a preventive protrusion formed along a circumference of an inner surface of a body coupling part coupled with the cover coupling part to accommodate the PCB;
• engaging and coupling the cover coupling part with the body coupling part and forming a sealing space between the cover coupling part and the body coupling part along a circumference of an inner surface of each of the cover coupling part, the body coupling part, and the preventive protrusion;
• and
• filling the sealing space between the cover coupling part and the body coupling part, at which the connector cover is coupled with the housing body by injecting the sealing material through the sealing material injection pipe, wherein the sealing material is transferred to the sealing space through the sealing material injection pipe such that the sealing space contains all of the sealing material and the sealing material injection pipe does not contain the sealing material.