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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 80 (Active Air Flap Diagnosis (HEV)) >> DTC U0001: High Speed CAN Communication Buss Off (C-CAN) >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • CAN Message signal confirmation
  1. Poor connection of each Module connectors.
  2. Open or Short in CAN communication.
  3. Faulty CAN communication Module.
Enable conditions
  • IG KEY "ON" or Engine "ON"
Threshold value
  • No receiving CAN message.
Diagnosis time
  • 0.5 sec.
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