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Home >> Hyundai >> 2012 >> Genesis 5.0 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 45 (Power Trunk Module Diagnosis) >> DTC B1603: CAN Communication Bus Off >> General Information >> DTC Detecting Condition

General Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • CAN Communication Check
  • IPM, PTM are not Sleep condition1. CAN High and Low Line short to ground coincident
    1. CAN High and Low Line short to ground coincident
    2. CAN High and Low Line short to battery coincident
Enable Conditions
  • IPM, PTM power on
Threshold value
  • CAN High/Low: 0 V or B+
Diagnostic Time
  • Immediately
DTC Erasing Time
  • DTC is erased immediately after trouble fixed
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