This error code, EPC 000191.17, is generated when, with the engine running, the EPC commands forward or reverse movement but registers no or too low transmission speed. The potential causes include: Circuit problem at the transmission speed sensor (B104). Circuit problem at the forward solenoid valve (Y33) or reverse solenoid valve (Y36). Circuit problem at…

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This error code, EPC 000191.00, indicates that the EPC has registered a transmission speed during the calibration of the transmission. This issue can be caused by: A defective transmission speed sensor (B104/B172). The tractor not being on a level surface during calibration, causing it to move (resulting in detected transmission speed).

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This error code, EPC 000190.19, is generated when the ECU cannot determine the engine speed and therefore cannot provide the CAN BUS with any data. A transmitted replacement value generates this diagnostic trouble code in the EPC. In its active state, this fault also generates a diagnostic trouble code at the ECU, which takes priority.

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This error code, EPC 000190.08, indicates that the EPC receives an incorrect engine speed signal from the ECU. This can happen if: The EPC receives an engine speed signal between 2 and 299 rpm from the ECU for three seconds via the direct line (lead 6101). The EPC cannot receive the engine speed signal via…

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This error code, EPC 000177.16, indicates that the transmission oil temperature is high, specifically between 101°C (214°F) and 105°C (221°F). Prolonged exposure to these temperatures can lead to overheating and potential damage to the transmission system.

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This error code, EPC 000177.04, indicates that the control unit has detected a voltage that is too low at the signal input of the transmission oil temperature sensor (lead 6002). This typically means the temperature value is above 125°C (257°F), suggesting a short to ground in the sensor circuit.

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This error code, EPC 000177.03, indicates that the control unit has detected a voltage that is too high at the signal input of the transmission oil temperature sensor (lead 6002). This typically means the temperature value is below 34°C (29°F), suggesting that the sensor’s circuit is either open or shorted to a positive lead.

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This error code, EPC 000177.00, indicates that the transmission oil temperature has exceeded 106°C (223°F). High transmission oil temperature can lead to overheating, which may cause damage to the transmission components and reduce the overall efficiency of the system.

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This error code, EPC 000158.04, is generated when the control unit registers a supply voltage of less than 9 volts. Low supply voltage can indicate an issue with the battery, wiring, or alternator.

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This error code, EPC 000158.03, is generated when the control unit registers a supply voltage above 16 volts. High supply voltage can indicate an issue with the electrical system, such as a malfunctioning alternator or voltage regulator.

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This error code, EPC 000127.01, is generated when the EPC detects low transmission oil pressure (system pressure) at an engine speed above 700 rpm. This indicates a potential issue with the transmission oil system that could affect its performance and longevity.

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