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Home >> Kia >> 2012 >> Optima LX, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 64 (Body Control Module (BCM) Diagnosis) >> DTC B1602: CAN Error >> General Information >> DTC Detecting Condition
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General Information: DTC Detecting Condition

WARNING: This page is about a different car, the 2013 Kia Sportage and 2012 Kia Sportage. However, it is still accessible from the selected car via links, so may be relevant.
DTC DETECTING CONDITION CHART

Item Detecting Condition Possible Cause
DTC Strategy
  • CAN Communication Check
  1. BCM are not Sleep condition
  1. CAN High Line short to battery
  2. CAN Low Line short to battery
  3. CAN High Line short to ground
  4. CAN Low Line short to ground
  5. CAN High and Low line short to each other
  6. CAN High Line short to 5V power
  7. CAN High Line open
  8. CAN Low Line open
CAUTION: Under Sleep condition, CAN High Line is 0V and CAN Low Line is battery voltage.
Enable Conditions
  • BCM power on (Under normal communication)
Threshold Value
  • CAN high: 0V or B+
  • CAN low: 0V or B+
Diagnostic Time
  • Immediately
DTC Erasing Time
  • DTC is erased immediately after trouble fixed
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