Description:

This diagnostic trouble code is generated when there is a data transfer problem between the ECU control software and the PTA control software. It occurs when the reception of messages sent on the CAN BUS is intermittent or non-existent, indicating an open circuit, a short circuit, or faulty CAN BUS terminating resistors.

Reaction:

Limited or no function of the control software until the error is corrected, indicating a critical communication issue.

Recommendations:

Inspect CAN BUS Wiring:

• Check the CAN BUS wiring for any signs of damage, wear, or disconnection.
• Repair or replace any damaged wiring.

Test CAN BUS Terminating Resistors:

• Verify the integrity and functionality of the CAN BUS terminating resistors.
• Replace any faulty resistors.

Ensure Proper Connections:

• Inspect all connectors associated with the CAN BUS for secure and proper connections.
• Clean or replace any corroded or loose connectors.

Verify ECU and PTA Software:

• Ensure the ECU and PTA control software are up to date and properly configured.
• Update the software if necessary.

Note:

Reliable communication over the CAN BUS is essential for the proper functioning of the control software. Regular maintenance and prompt attention to any communication issues can help prevent significant operational disruptions.