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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 76 (Auto Headlamp Leveling System Diagnosis (HEV)) >> DTC C1212: Vehicle Speed Sensor Failure >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • Frequency check (20 ms)
  1. Poor connection
  2. Faulty Vehicle speed sensor
  3. AHLS-ECM faulty
Detecting mode
  • When vehicle is driving
Threshold Value
  • Frequency >420 Hz (Pulse, Duty 50%)
Detecting time
  • More than 100 times/2 sec
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