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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Auto Headlamp Leveling System Diagnosis (Except HEV) >> DTC C1604: ECU Hardware Error >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • ECU internal check
  1. AHLDM
Enable Conditions
  • IG "ON"
Threshold Value
  • Internal error detected
Detecting Time
  • Immediately
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