Electronic circuit unit to be mounted on automatic transmission for vehicle and manufacturing method thereof

An electronic circuit unit to be mounted within a casing of an automatic transmission for a vehicle, comprising:

• an electronic circuit body including a main-body and a plurality of circuit-side terminals, the main-body having a build-in electronic circuit, the circuit-side terminals being mutually protruding outwardly from the main-body in a common direction;
• a connector including a plurality of wire-side terminals and a connector housing, the wire-side terminals each having a fitting part adapted to fit with the respective circuit-side terminals, and the wire-side terminals being fixed to respective ends of a plurality of wires, the connector housing being adapted to hold the wire-side terminals in an array corresponding to an array of the circuit-side terminals;
• a base member including a placing face on which the electronic circuit body and the connector are to be placed, and the electronic circuit body being fixed on the placing face;
• and
• a cover placed on the placing face and fastened to the base member,
• wherein the cover includes:
• a main-body covering part adapted to cover the main-body of the electronic circuit body from a side opposing to the placing face in an assembled state where the cover and the electronic circuit body are placed on the placing face and where the circuit-side terminals fit on the fitting parts;
• a fitting-portion covering part extending from the main-body covering part in a protruding direction of the circuit-side terminals, the fitting-portion covering part being adapted to cover a fitting-portion of the circuit-side terminals and the fitting parts from a side opposing to the placing face in the assembled state;
• and
• a connector holder adapted to hold the connector at a fitting position where the circuit-side terminals fit with the fitting parts in the assembled state.