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Repair procedures: Inspection

  1. Measure the output voltage between the terminal of the wheel speed sensor and the body ground.
    IMPORTANT:

    In order to protect the wheel speed sensor, when measuring output voltage, a 100 Ω resister must be used as shown in Fig 1.

    Fig 1: Measuring Output Voltage Between Terminal Of Wheel Speed Sensor And Body Ground
    G10383597Courtesy 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 in Fig 2.
    Fig 2: Wheel Speed Sensor Output Voltage Waveform
    G10383598Courtesy of HYUNDAI MOTOR AMERICA

    V_low: 0.59V ~ 0.84V

    V_high: 1.18V ~ 1.68V

    Frequency range: 1 ~ 2, 000Hz

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