Steering apparatus and method for automotive vehicle

In steering apparatus and method for an automotive vehicle, a turning section that turns steered road wheels is provided. Aclutch is installed in a predetermined position midway through a steering system from an operation input section to the steered road wheels to link between the operation input section and the steered road wheels. A steering angle of the operation portion is detected. A turning angle is detected. An elastically deformable member is interposed between the operation portion and the turning portion to transmit a steering torque inputted from the operation input section to the steered road wheels when the clutch causes the operation input portion and the steered road wheels to be connected; An angular deviation between the steering angle detection value and the turning angle detection value, developed due to a deformation of the member is calculated.