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Home >> Hyundai >> 2011 >> Azera Limited >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) >> DTC U0001: High Speed CAN Communication Bus off >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

DTC DETECTING CONDITION REFERENCE CHART

Item Detecting Condition Possible cause
DTC Strategy
  • Detects failures in communication between the ECM and another or modules in the vehicle which are on the CAN serial bus.
  1. CAN BUS
  2. CAN communication module component
Enable Conditions
  • Engine Run Time ≥ 2sec.
  • Ignition Voltage ≥ 11V
Threshold value
  • CAN communicating error
Diagnosis Time
  • Continuous
MIL On Condition
  • 2 driving cycle