WARNING: This page is about a different car, the 2014 Hyundai Veloster and 2013 Hyundai Veloster. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Display - Input & Output Speed Sensor Current Data And Signal Waveform (1 Of 2)
Courtesy of HYUNDAI MOTOR AMERICA
Fig 2: Display - Input & Output Speed Sensor Current Data And Signal Waveform (2 Of 2)