In a closure panel control apparatus, an ECU controls a rotational speed of an electric motor, which provides a drive force to drive a closure panel in an opening movement and a closing movement thereof. Each listening period is open for a prescribed period of time and is spaced from successive listening periods by an interval. In preferred systems, even if a valve shaft locking bolt fastening the valve shaft is undesirably loosened during engine operation, the locking bolt is prevented from being completely removed from the retainer, thereby avoiding potential engine damage. Therefore, the resistance in portions of the body that are near the interfaces with the emitter regions is reduced, and the operation of parasitic transistors formed by the emitter regions, the body, and an epitaxial layer is substantially prevented. 01-40% by weight in solids relative to the total amount of the ink composition.