Sealed ECU assembly

A method of assembling an electronic control unit comprising:

• depositing a sealant material on one or more first ramp features of an upper housing, wherein said upper housing comprises three sides extending perpendicularly from a fourth side, wherein said three sides include a back wall and two side walls extending generally parallel to and spaced apart from one another and generally perpendicularly to the back wall, said four sides of said upper housing define a rectilinear volume and a connector opening, and said two side walls each define said one or more first ramp features configured to hold said sealant material;
• and
• assembling a connector and printed circuit board subassembly into said upper housing using a vertical motion, wherein (a) said connector and printed circuit board subassembly comprises a connector assembly holding a plurality of terminal pins and attached to a printed circuit board substrate, (b) said connector assembly extends perpendicularly from said printed circuit board substrate, (c) each of said plurality of terminal pins comprises a right angle bend, (d) a first end of each of said plurality of terminal pins is inserted into said printed circuit board substrate, (e) a second end of each of said plurality of terminal pins extend through said connector assembly, (f) said connector assembly comprises one or more second ramp features configured to mate with said one or more first ramp features of said upper housing, and (g) said upper housing is configured to (i) allow assembling of said connector and printed circuit board subassembly into said upper housing using said vertical motion and (ii) interlock with said connector assembly to hold said printed circuit board substrate with said connector assembly and said plurality of terminal pins in place within said housing,
• wherein the upper housing further includes a top wall, wherein the back wall and the two side walls each extend from and are generally perpendicular to the top wall, and
• wherein said one or more first ramp features includes a first descending ramp feature extending at an angle from the top wall, toward the back wall, and in a plane with one of the two side walls, and
• wherein said one or more first ramp features further includes a second descending ramp feature extending at an angle away from the top wall, away from the back wall, and in the plane with the one of the two side walls.