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Home >> Hyundai >> 2012 >> Genesis 5.0 R-Spec >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 41 (Front Area Module Diagnosis) >> DTC B1603: CAN Communication Bus Off >> General Information >> DTC Detecting Condition
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General Information: DTC Detecting Condition

WARNING: This page is about a different variant/trim than selected.
Item Detecting Condition Possible Cause
DTC Strategy
  • CAN Communication Check
  • IPM, FAM are not Sleep condition
    1. CAN High and Low Line short to ground coincident
    2. CAN High and Low Line short to battery coincident
Enable Conditions
  • IPM, FAM 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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