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Home >> Kia >> 2021 >> Forte EX >> Repair and Diagnosis >> External Pages >> Different car >> Section 39 (Integrated Central Control Unit Diagnosis) >> DTC B2801-00: M-CAN Single Line Error >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

WARNING: This page is about a different car, the 2024 Kia Forte. However, it is still accessible from the selected car via links, so may be relevant.
Item Detecting Condition Possible Cause
DTC Strategy
  • CAN signal monitoring
  • Poor connector connection
  • Open or short in M-CAN High line
  • Open or short in M-CAN low line
  • Faulty modules that connected to M-CAN
Enable Condition
  • Normal battery voltage status (battery voltage is 9 to 16V)
  • M-CAN bus is normal
Threshold Value
  • M-CAN line error is detected (short to ground/power, CAN high/low circuit mutual short)
Diagnosis Time
  • 2s
Symptom
  • M-CAN communication is not possible
Erase Condition
  • Erase with KDS after the failure solved