LEMON Manuals: Even more car manuals for everyone
Home >> Kia >> 2018 >> Niro EX >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> ESC/AHB Diagnosis (HEV) (1 Of 2) >> DTC C1204-02: Wheel Speed Sensor Front-RH Range/Performance/Intermittent >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Signal monitoring
  • Incorrect wheel speed sensor mounting (air gap)
  • Wheel speed sensor knuckle mounting bolt bad connection
  • Deformation / contamination of tone wheel and poor performance
  • External mechanical interference (vibration)
  • Defective rotor and wheel bearing
  • Faulty wheel speed sensor
  • Faulty sensor circuit
  • Faulty IBAU
Enable Condition
  • Ignition "ON"
Threshold Value Case 1
  • Abnormal wheel speed change is detected while driving vehicle with over 2km/h (1.2MPH)

    * Speed jump error counter is cleared every 30 minutes

Case 2
  • A failure is detected in case that three wheel speeds are above 15km/h (9.3MPH) and in specific range and the other wheel speed is out of specific range longer than 20s
  • A failure is detected in case that two wheel speeds are above 15km/h (9.3MPH) and in specific range and the other wheel speed(s) is (are) out of specific range longer than 60s
  • A failure is detected in case that Min Wheel Speed is less than 60% of Max Wheel Speed which is over than 40km/h for more than 120s
  • A failure is detected in case that Min Wheel Speed is less than 40% of Max Wheel Speed which is over than 20km/h (12.4MPH) and less than 40km/h (24.8MPH) for more than 120s
Case 3
  • A failure is detected if the signal is detected as a smart wheel sensor signal 200 times consecutively on the wheel that is set as active wheel sensor
  • A failure is detected if the signal is detected as an invalid signal (is not smart wheel sensor signal) 200 times consecutively on the wheel that is set as smart wheel sensor. (The failure is detected when wheel speed is in the range of 50 to 60km/h (31 to 37.2MPH))
Warning Lamp
  • ABS/ESC (ESP)/AVH Warning Indicator Lamp "ON"
  • In case of failure on more than two wheels
    • EBD Warning Indicator Lamp "ON" (Inhibits EBD)
  • In case of failure on all wheels
    • Brake (EBD) Warning Indicator Lamp "ON" (AHB performance degradation)
Disable Condition
  • Ignition "OFF" and then "ON"