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Home >> Kia >> 2016 >> Cadenza Base >> Repair and Diagnosis >> Steering >> Steering Column >> Steering Column Module Diagnosis >> DTC B1603: CAN Communication Bus Off >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible cause
DTC Strategy
  • CAN Communication Check.
  • IPM and SCM 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 and SCM power on.
Threshold value
  • CAN high: 0V or B+
  • CAN low: 0V or B+
Diagnosis time
  • Immediately.
DTC Erasing Time
  • DTC is erased immediately after trouble fixed(If current DTCs do not occur during IG ON-OFF 30 times repeat, history failures is cleared)