Repair Procedures: Inspection

1. 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 120 Ω resister must be used as shown.
   Fig 1: Measuring Output Voltage Between Wheel Speed Sensor Terminal And Body Ground

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

Courtesy of HYUNDAI MOTOR AMERICA

V_low:  0.7 V ~ 1.0 V

V_high:  1.4 V ~ 2.0 V

Frequency range:  1 ~ 2, 500Hz