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DTC C1213 Wheel Speed Frequency Error: DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item Detecting Condition Possible cause
Case 1 DTC strategy
  • Signal motorning
  • Improper installation of wheel speed sensor
  • Abnormal Rotor and wheel bearing
  • Inoperative Wheel speed sensor
  • Inoperative HECU
Monitoring Period
  • Continous
Enable Conditions
  • When short cut between the wheel speed sensor supply and the battery.
Fail Safe
  • Wheel speed sensor signals are not reliable.
Case 2 DTC strategy
  • Signal motorning
Monitoring Period
  • Continous
Enable Conditions
  • The monitoring reports a failure if the ABS target slip is exceeded for a time period > = 10 s at one or more wheels.
    • If the driver brakes or the velocity is lower than 50 km/h the detection time is enlarged to 60 s.
Fail Safe
  • Reduced function of the ESC system
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