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Home >> Genesis >> 2021 >> G90 3.3T Premium, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Exterior Trim >> Active Air Flap Diagnosis >> DTC P1238: Active Air Flap Plausibility Check Fail >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Voltage detection
  1. Faulty feedback sensor
Enable Conditions
  • IG "ON"
Threshold value
  • If the change rate of the feedback sensor voltage on the drive shaft and sensing shaft is higher than the reference value
Diagnosis Time
  • If it has occurred 5 times within 5 seconds after it occurred initially
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