| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a manufacturing method of an in-vehicle electronic control unit group including a plurality of kinds of in-vehicle electronic control units, capable of preventing a circuit board from being erroneously assembled to a unit case during manufacture.SOLUTION: A manufacturing method of an in-vehicle electronic control unit group includes: a first circuit unit preparation step of preparing a first circuit unit; a first unit case manufacturing step of manufacturing a first unit case; a second circuit unit preparation step of preparing a second circuit unit; a second unit case manufacturing step of manufacturing a second unit case comprising a second protrusion which is formed to interfere with a first circuit board; a first in-vehicle electronic control unit forming step of forming a first in-vehicle electronic control unit; and a second in-vehicle electronic control unit forming step of forming a second in-vehicle electronic control unit. In the second circuit unit preparation step, a circuit unit with which a second protrusion avoidance portion formed to prevent interference with the second protrusion is formed on a second circuit board is prepared as the second circuit unit.</p> |
