Error code BCU 001890.31 is triggered when the Basic Control Unit (BCU) of a John Deere vehicle, with the rear PTO unit engaged, detects a change in the rear PTO spline configuration. This diagnostic trouble code can indicate a malfunction or erroneous reading from the PTO shaft spline identifier switch (B179), which is designed to…
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John Deere error BCU codes
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John Deere error BCU codes
Error code BCU 001890.04 is triggered when the Basic Control Unit (BCU) of a John Deere vehicle detects a supply voltage of less than 9 volts at the positive power supply lead of the PTO shaft spline identifier switch (B179). This low voltage condition typically indicates a short to ground within the circuit, which can…
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John Deere error BCU codes
Error code BCU 001890.03 is triggered when the Basic Control Unit (BCU) of a John Deere vehicle detects a supply voltage exceeding 16 volts at the positive power supply lead of the PTO shaft spline identifier switch (B179). Such high voltage levels can indicate problems with the vehicle’s electrical charging system, such as a defective…
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John Deere error BCU codes
Error code BCU 001883.31 is triggered when the Basic Control Unit (BCU) of a John Deere vehicle detects that the speed of the rear Power Take-Off (PTO) exceeds the specified safe operational limits. This diagnostic trouble code points to potential issues with the PTO system’s control or a malfunctioning rear PTO speed sensor. If this…
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John Deere error BCU codes
Error code BCU 001882.17 is recorded when the Basic Control Unit (BCU) of a John Deere vehicle detects no speed signal from the front Power Take-Off (PTO) speed sensor, even though the front PTO is activated (as set in address BCU027) or the front PTO speed sensor itself is set to be active (as set…
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John Deere error BCU codes
Error code BCU 001882.15 occurs when the Basic Control Unit (BCU) of a John Deere vehicle detects a speed signal from the front Power Take-Off (PTO) speed sensor, despite the front PTO being switched off. This diagnostic trouble code is activated under conditions set by address BCU027 (front PTO activation) or BCU030 (front PTO speed…
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John Deere error BCU codes
Error code BCU 001882.02 is activated when the Basic Control Unit (BCU) of a John Deere vehicle detects an open circuit in the front Power Take-Off (PTO) speed sensor. This diagnostic trouble code is specific to conditions where the front PTO is engaged via address BCU027, or when a front PTO speed sensor is expected…
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John Deere error BCU codes
Error code BCU 001873.17 is initiated when the Basic Control Unit (BCU) of a John Deere vehicle detects a voltage at the hitch position sensor that is too low during the calibration process. This low voltage could signify issues such as poor electrical connections, degraded wiring, or a failing sensor, potentially leading to inaccurate calibration…
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John Deere error BCU codes
Error code BCU 001873.15 occurs when the Basic Control Unit (BCU) of a John Deere vehicle detects excessive voltage at the hitch position sensor during the calibration process. This high voltage reading can indicate a malfunction within the sensor circuit or related components, potentially leading to inaccurate hitch position calibration which could affect the operational…
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John Deere error BCU codes
Error code BCU 001873.04 is triggered when the Basic Control Unit (BCU) of a John Deere vehicle detects an abnormally low voltage (below 0.25 volts) at the input of the hitch position sensor. This low voltage reading indicates a potential issue in the sensor circuit, such as a poor connection, broken wire, or a fault…
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John Deere error BCU codes
Error code BCU 001873.03 is activated when the Basic Control Unit (BCU) of a John Deere vehicle detects a voltage exceeding 4.75 volts at the input of the hitch position sensor. This high voltage reading is unusual and suggests a potential malfunction in the sensor circuit, such as an electrical short, incorrect wiring, or other…