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Home >> Genesis >> 2023 >> G80 2.5T Advanced, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 39 (Body Control Module Diagnosis) >> DTC B1603-00: CAN Bus OFF >> DTC Information And Inspection >> DTC Setting Condition

DTC Setting Condition

WARNING: This page is about a different car, the 2024 Genesis G80. However, it is still accessible from the selected car via links, so may be relevant.
Trouble Shooting 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