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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 64 (HEV Motor System Diagnosis (HEV)) >> DTC U1001: High Speed CAN Communication Bus (H-CAN) >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • CAN Signal Check
  1. Poor connection
  2. Power supply to each Module
  3. Open or short in Each Module communication line
  4. Open or short in HCU communication line
  5. 120 register (Inside BMS & PCM)
Enable Conditions
  • IG ON
Threshold Value
  • Failure on CAN Communication line for more than 1 sec.
Diagnosis Time
  • 1 sec
DTC
  • 2 Driving Cycle
MIL On Condition
  • 2 Driving Cycle
Service Lamp On Condition
  • 1 Driving Cycle
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