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Home >> Kia >> 2012 >> Optima LX, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 50 (Body Control Module Diagnosis - HEV) >> DTC B1603: CAN 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
  1. BCM 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
  • BCM 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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