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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 57 (Engine Control System Diagnosis (2 Of 2) (HEV)) >> DTC U1008: Lost Communication With Radiator Shutter (Active Air Flap) (C-CAN) >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

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Item Detecting Condition Possible cause
DTC Strategy
  • No message from HCU at CAN
  1. Poor connection
  2. CAN communication
  3. Open or short in AAF communication line
Enable Conditions
  • Time exceeded with no Message
Threshold value
  • No message during 100m sec
Diagnostic Time
  • 2sec
Mil on condition
  • two trips
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