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Home >> Hyundai >> 2012 >> Veloster Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 44 (Cluster 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 car, the 2013 Hyundai Veloster. However, it is still accessible from the selected car via links, so may be relevant.
Item Detecting Condition Possible Cause
DTC Strategy
  • CAN Communication Check
  1. IPM, CLU 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, CLU power on
Threshold Value
  • CAN High/Low: 0V or B+
Diagnostic Time
  • Immediately
DTC Erasing Time
  • DTC is erased immediately after trouble fixed
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