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Home >> Genesis >> 2017 >> G90 5.0 Ultimate, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 450 (Body Control Module Diagnosis) >> DTC B2801-00: MM CAN Single Line Error >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

WARNING: This page is about a different car, the 2017 Kia K900. However, it is still accessible from the selected car via links, so may be relevant.
Item Detecting Condition Possible Cause
DTC Strategy
  • MM CAN Communication Check
  • BCM are not Sleep condition
    1. MM CAN High Line short to battery
    2. MM CAN Low Line short to battery
    3. MM CAN High Line short to ground
    4. MM CAN Low Line short to ground
    5. MM CAN High and Low line short to each other
    6. MM CAN High Line short to 5V power
    7. MM CAN High Line open
    8. MM CAN Low Line open
    CAUTION: After sleep condition, CAN High Line is 0V and CAN Low Line is battery voltage.
Enable Conditions
  • BCM power on (Under normal communication)
Threshold Value
  • MM CAN high: 0V or B+
  • MM CAN low: 0V or B+
Diagnostic Time
  • Immediately
DTC Erasing Time
  • DTC is erased immediately after fault has been corrected