This diagnostic trouble code (TCU 522367.12) is generated if the control unit registers a false setting or input in the tractor model address. This indicates that the control unit is receiving incorrect or unexpected input values, which can affect the operation of the equipment.

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This diagnostic trouble code (TCU 002221.09) is generated when a data transfer problem occurs between the PLC and TCU. Specifically, the reception of CAN messages from the PLC control unit regarding the status of the park lock and wheel speed sensor (B84) is intermittent or nonexistent. This intermittent reception could be due to a loose…

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This diagnostic trouble code (TCU 002005.09) is generated when a data transfer problem occurs between the UIC and TCU. The reception of CAN messages concerning general transmission information (clutch pedal, acceleration, transmission ratios, etc.) transmitted by UIC is intermittent or nonexistent, which could be due to a loose wire or other communication issues.

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This diagnostic trouble code (TCU 002000.09) is generated when a data transfer problem occurs between the ECU and TCU. Specifically, the reception of CAN messages regarding engine load and engine speed from the ECU control unit is intermittent or nonexistent, which could be due to a loose wire or other communication issues.

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This diagnostic trouble code (TCU 000630.13) is generated if the TCU has not been calibrated yet, is incorrectly calibrated, or if calibration has not been completed. It is also possible that this diagnostic trouble code is generated by mistake during transmission calibration. This code triggers an “Information” alarm level and does not necessarily indicate a…

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This diagnostic trouble code (TCU 000604.03) is generated when the control unit detects a short to a positive lead at the transmission enable signal (neutral signal, lead 6064) during the initialization process (control unit boot sequence after the ignition is switched ON). This indicates an electrical issue causing higher-than-expected voltage at the transmission enable signal.

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This diagnostic trouble code (TCU 000604.02) is generated when the transmission enable signal (neutral signal, lead 6064) from the transmission enable relay (K06/03 or K02/03) does not match the position of the reverse drive lever (transmitted by the UIC control unit). Relay K06/03 is used in tractors up to Serial Number Break 2008, and Relay…

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This diagnostic trouble code (TCU 000598.03) is generated when the control unit detects a short to a positive lead at the signal lead of the clutch pedal switch (S72, lead 6046) during the initialization process (control unit boot sequence after the ignition is switched ON). This indicates that there is an electrical issue causing a…

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This diagnostic trouble code (TCU 000598.02) is generated if the position of the clutch pedal switch does not correspond to the position of the clutch pedal. This discrepancy is detected when the voltage of the clutch pedal potentiometer, transmitted as a CAN BUS message from the UIC control unit, does not match the expected values.

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This diagnostic trouble code (TCU 000237.31) is generated when the vehicle identification number (VIN) from the UIC control unit is not received or incorrectly received. This indicates a problem with the transmission or reception of VIN data.

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This diagnostic trouble code (TCU 000237.02) is generated if the vehicle identification number (VIN) of the UIC control unit does not match the tractor type in address TCU044. This indicates a mismatch between the stored VIN information and the tractor type configuration.

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