Description:

This error code, EPC 000091.19, indicates that the ECU is unable to supply the CAN BUS message concerning engine speed. This can occur due to incorrect or missing CAN BUS messages.

Reaction:

When this error is detected, the control systems relying on engine speed data may not function properly, potentially leading to issues with engine performance and operation.

Recommendations:

Verify CAN BUS Communication:

• Check the CAN BUS wiring and connections for any signs of damage, loose connections, or corrosion. Ensure the integrity of the signal transmission.

Test ECU Functionality:

• Use diagnostic tools to test the ECU and ensure it is correctly transmitting the engine speed data. Update or reflash the ECU software if necessary.

Inspect Sensor and Wiring:

• Check the engine speed sensor and its associated wiring for any faults or malfunctions. Repair or replace if necessary.

Reset and Test System:

• After addressing the above issues, reset the system and test to ensure proper communication of engine speed data.

Note:

Maintaining reliable CAN BUS communication and ensuring the ECU is functioning correctly are crucial for accurate engine speed data transmission. Regular inspections and software updates can help prevent such issues.