This diagnostic trouble code (TCU 000168.01) is generated when the control unit registers a supply voltage of less than 9 volts. Low voltage can indicate issues with the battery, charging system, or electrical connections within the equipment.

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This diagnostic trouble code (TCU 000168.00) is generated when the control unit registers a supply voltage above 16 volts. Excessive voltage can indicate an issue with the charging system, voltage regulator, or an electrical fault within the equipment.

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This diagnostic trouble code (TCU 000161.11) is generated when the transmission input speed registered by the TCU control unit does not match the engine speed that is available at the engine control unit (ECU) via the CAN BUS. This discrepancy indicates a potential issue with the sensor for transmission input speed or a communication problem…

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This diagnostic trouble code (TCU 000161.04) is generated when the control unit detects that the voltage at the signal input of the transmission input speed sensor (lead 6075) is too low. This typically indicates a short to ground within the circuit.

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This diagnostic trouble code (TCU 000161.03) is generated when the control unit detects that the voltage at the signal input of the transmission input speed sensor (lead 6075) is too high. This usually indicates that the sensor’s circuit is either open or shorted to a positive lead.

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This diagnostic trouble code (TCU 000161.02) is triggered when the TCU control unit detects a sudden and inexplicable drop in the transmission input speed to 0 rpm. This indicates a potential issue with the B61 sensor responsible for measuring the transmission input speed, suggesting that the sensor may be malfunctioning or there may be an…

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This diagnostic trouble code (TCU 000161.00) is generated when the TCU control unit detects that the transmission input speed (engine speed) exceeds the maximum allowable rpm. The code is specifically indicated when there is no weight pushing from behind to account for the excessive speed, suggesting that the engine speed is beyond safe operational limits.

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This diagnostic trouble code (TCU 000127.01) is triggered when the control unit fails to register any transmission oil pressure (system pressure). The code is specifically activated when the pressure switch for transmission oil (S74) remains open while the transmission input speed (engine speed) exceeds 900 rpm. If the diagnostic trouble code TCU 524227.12 is also…

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This diagnostic trouble code (TCU 000126.00) is generated when dirt is detected in the transmission oil filter. Specifically, the code is triggered when the pressure switch of the transmission oil filter remains open while the transmission oil temperature exceeds 40°C (104°F). This indicates that the filter may be clogged or excessively dirty, impairing the oil…

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