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Home >> Genesis >> 2025 >> GV70 2.5T Select >> Repair and Diagnosis >> Steering >> Steering Column >> Steering Column Module Diagnosis >> DTC B1603-00: CAN Bus OFF >> DTC Information And Inspection >> DTC Setting Condition

DTC Setting Condition

Troubleshooting Condition Possible Cause
Main Action
  • Monitor the CAN communication
  1. Open/Poor Connection both B-CAN High line and Low line
  2. Short-to-Battery both B-CAN High and Low line coincidentally
  3. Short-to-Ground both B-CAN High and Low line coincidentally
  4. Short between B-CAN High line and Low line
Prerequisite Condition
  • Power Voltage: Between 9V and 16V
  • B-CAN communication: Active
Threshold Value
  • Impossible to send B-CAN message
Diagnosis Time
  • 2 sec
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