Component Inspection

Wheel speed sensor circuit check
1. Lift the vehicle.
2. IG "ON".
3. Turn the wheel by hand.
4. Measure waveform between signal terminal of the wheel speed sensor harness connector and chassis ground with oscilloscope.
  Specification : High: 1.18~1.68V, Low: 0.59~0.84V
  
  Fig 1: Measuring Waveform Between Signal Terminal Of Wheel Speed Sensor Harness Connector And Chassis Ground
  Courtesy of KIA MOTORS AMERICA, INC.
5. Is the measured waveform within specifications?
  YES
  
  Fault is intermittent caused by poor connection in wheel speed sensor harness (FR). Go to "VERIFICATION OF VEHICLE REPAIR " procedure.
  
  NO
  
  Substitute with a known-good Wheel speed sensor and check for proper operation. If problem is corrected, replace Wheel speed sensor and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.