Front 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 Wheel Speed Sensor & Body Ground
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: Voltage Graph
Courtesy of HYUNDAI MOTOR CO.

V_low: 0.59 V ~ 0.84 V

V_high: 1.18 V ~ 1.68 V

Frequency range: 1 ~ 2,500 Hz