Repair procedures: Inspection

Turn ignition switch OFF and disconnect the negative (-) battery cable.
Measure the output voltage between the terminal of the wheel speed sensor and the body ground.
NOTE: To protect the wheel speed sensor when measuring the output voltage, a 100 Ω resister must be used as shown in illustration below.

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

Fig 2: Wheel Speed Sensor Output Voltage Graph
Courtesy of HYUNDAI MOTOR AMERICA

V_low: 0.59V ~ 0.84V

V_high: 1.18V ~ 1.68V

Frequency range: 1 ~ 2, 000Hz