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Home >> Hyundai >> 2017 >> Sonata Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 48 (Engine Control System Diagnosis - 2.0L (3 Of 3) (Except HEV)) >> DTC U0001: High Speed CAN Communication Bus Off (C-CAN) >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • CAN message transfer incorrect
  1. Open or short in CAN line
  2. Poor connection or damaged harness
  3. Faulty PCM
Enable Conditions
  • Delay time after ignition on greater than 0.5 sec.
  • Ignition Voltage greater than 10 V
  • Engine speed is higher than 32 RPM
Threshold Value
  • CAN communication error
Diagnostic Time
  • 2.5 sec.
MIL On Condition
  • 2 Driving Cycles
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