Rear Wheel Speed Sensor: Inspection

Measure the output voltage between the terminal of the wheel speed sensor and the body ground.
CAUTION: In order to protect the wheel speed sensor, when measuring output voltage, a 100 Ω resister must be used as shown.

Fig 1: Measuring Output Voltage Between Terminal Of Wheel Speed Sensor
Courtesy of HYUNDAI MOTOR CO.
Compare the change of the output voltage of the wheel speed sensor to the normal change of the output voltage as shown below.

Fig 2: Output Voltage Graph (Wheel Speed Sensor)
Courtesy of HYUNDAI MOTOR CO.