An engine has a stationary first body portion with one or more surfaces that define a portion of a fluid flow path through the engine. In one embodiment, cardiac signals are sensed and pacing pulse vectors are delivered between at least one of a first left ventricular electrode and a second left ventricular electrode. When the vehicle start preparation state determination unit determines that the vehicle start preparation state is incomplete, the range switching control unit executes running prohibition control by which the forward engagement element and the reverse engagement element are all disengaged, regardless of the state of the range switching operation unit.