Description:

This diagnostic trouble code is generated when there is a data transfer problem between the Transmission Control Unit (TCU) or Engine Power Control (EPC) and the Engine Control Unit (ECU), characterized by intermittent or nonexistent reception of CAN messages.

Reaction:

The reception issues may disrupt communication between these control units, leading to erroneous or incomplete data being processed, which can affect vehicle operation.

Recommendations:

• Inspect CAN Bus Connections: Check for loose wires or connections in the CAN Bus system that could be causing intermittent signal loss.
• Test Communication Lines: Use diagnostic tools to test the integrity of the communication lines between the TCU/EPC and ECU.
• Check for Electromagnetic Interference: Ensure there is no external interference affecting the CAN Bus signals.
• Replace Faulty Wiring or Components: Repair or replace any faulty wiring or components that are contributing to communication failures.
• Reset ECU and Verify Communication: After addressing potential issues, reset the ECU and verify that communication has been restored and is stable.

Note:

Ensuring stable and continuous communication between control units via the CAN Bus is essential for reliable vehicle operation. Regular checks and maintenance of the communication system can prevent data transfer problems.