EPC 000091.07 – Incorrect CAN BUS Message, Accelerator Pedal Position from ECU

EPC 000091.07 (EPC 91.07)

Code: 000091.07

Shortcode: 91.07


This error code, EPC 000091.07, is triggered when the control unit detects an incorrect CAN BUS message regarding the accelerator pedal position from the ECU. This occurs when the selection from the foot throttle on input address EPC025 on premium tractors has been deactivated.


When this error is detected, the control system may not correctly interpret the accelerator pedal position, which can lead to issues with throttle control and engine performance. This can result in unexpected or unresponsive acceleration behavior.


Verify CAN BUS Configuration:

  • Check the configuration settings for the CAN BUS, particularly the input address EPC025. Ensure that the foot throttle selection is correctly activated and configured.

Inspect CAN BUS Wiring and Connections:

  • Examine 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 accelerator pedal position data. Update or reflash the ECU software if necessary.

Check Accelerator Pedal Sensor:

  • Inspect the accelerator pedal sensor for any faults or malfunctions. Replace if necessary.

Reset and Test System:

  • After addressing the above issues, reset the system and test the throttle response to ensure proper operation.


Accurate CAN BUS communication is essential for reliable throttle control. Regular maintenance of the CAN BUS system and updating the ECU software can help prevent such issues. If problems persist, further diagnostics may be required to identify and resolve deeper issues.

Control Units: John Deere

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