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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 C1255: Rear Height Sensor >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • Leveling road angle check (20 ms)
  1. Loosened Actuator fixing bolt
  2. Faulty height sensor
Enable Conditions
  • IG KEY ON, ENGINE ON, HEAD LAMP ON
Threshold Value
  • Angle > ± 45°
Detecting time
  • More than 2 times/2 sec
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