Rear Wheel Speed Sensor: 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 750. resistor must be used as shown.
   Fig 1: Inspecting Rear Wheel Speed Sensor

   Courtesy of HYUNDAI MOTOR CO.
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: Output Voltage Pattern

Courtesy of HYUNDAI MOTOR CO.

• V_low : 0.44 V ~ 0.63 V
• V_high : 0.885 V ~ 1.26 V
• Frequency range : 1~2,500 Hz