Description:

This error code is set when there is a data transfer issue between the Body Control Unit (BCU) and the ECU, with intermittent or nonexistent reception of CAN messages potentially due to loose wiring or other connectivity issues.

Reaction:

The vehicle’s body control functions, which may include lights, locks, and other auxiliary systems, may experience limited or no functionality due to communication disruption.

Recommendations:

• Inspect BCU and ECU Connections: Check all connections between the BCU and ECU for looseness, damage, or corrosion.
• Secure and Repair Wiring: Ensure that all wiring is secure and free of damage. Repair any faults found that could impact communication.
• Test CAN Bus System: Use diagnostic tools to test the CAN Bus system for continuity and integrity.
• Reset and Reconfigure Systems: After addressing physical and connectivity issues, reset both the BCU and ECU to ensure settings are correctly reconfigured.
• Verify System Operation: Conduct a comprehensive test to verify that all body control functions are operational and communicating correctly with the ECU.

Note:

The integrity of the CAN Bus system is vital for the proper operation of vehicle body controls and other interconnected systems. Ensuring all connections are secure and conducting regular system checks can help maintain vehicle functionality and prevent communication issues.