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Front 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: Measuring Output Voltage Between Wheel Speed Sensor Terminals
    G04883910Courtesy of KIA MOTORS AMERICA, INC.
  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 Graph
    G04883911Courtesy of KIA MOTORS AMERICA, INC.
    • V_low : 0.44 V-0.63 V
    • V_high : 0.885 V-1.26 V
    • Frequency range : 1-2,500 Hz
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