Description:

Error code ECU 001110.31 is generated when a diagnostic trouble code requiring engine shutdown is detected, and no operator presence signal is present. The PDU (Power Distribution Unit) control software sends a CAN Bus message to the ECU control software, resulting in the engine being shut down to protect against potential damage.

Reaction:

The ECU shuts down the engine to prevent further damage, leading to limited or no function of the vehicle.

Recommendations:

• Identify Underlying Fault: Use diagnostic tools to identify the initial diagnostic trouble code that triggered the engine protection shutdown. Address this underlying issue first.
• Check Operator Presence Signal: Ensure that the operator presence system is functioning correctly and that the signal is being properly transmitted to the ECU.
• Inspect CAN Bus Communication: Verify that the CAN Bus communication between the PDU and ECU is intact and free from faults.
• Repair or Replace Faulty Components: Address any issues found in the operator presence system, CAN Bus communication, or the underlying fault that triggered the shutdown.
• Reset ECU and Verify Operation: After resolving the issues, reset the ECU to clear the error code and test the vehicle to ensure normal operation and that the engine does not shut down unexpectedly.

Note:

Engine protection shutdowns are critical safety features designed to prevent severe engine damage. Ensuring the operator presence system and CAN Bus communication function correctly, along with addressing any underlying faults promptly, is essential for maintaining vehicle safety and performance.