Error code BCU 303057.03 is triggered when the Basic Control Unit (BCU) of a John Deere vehicle detects a signal voltage exceeding 4.75 V at the signal input of the B27 rate of drop potentiometer during the calibration of the hitch control. This excessive voltage reading indicates a possible malfunction within the potentiometer or its…

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Error code BCU 303056.03 is triggered when the Basic Control Unit (BCU) of a John Deere vehicle detects a voltage exceeding 4.75 V at the signal input of the B27 raise limit potentiometer during the calibration of the hitch control. This high voltage reading can indicate a malfunction within the potentiometer or its associated wiring,…

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Error code BCU 303054.04 occurs when the Basic Control Unit (BCU) of a John Deere vehicle measures a voltage below 0.25 V at the signal input of the B27/B98 hitch height control potentiometer during hitch control calibration. This low voltage reading can indicate issues such as a poor connection, a broken wire, or a fault…

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Error code BCU 303054.03 is generated when the Basic Control Unit (BCU) of a John Deere vehicle measures a voltage exceeding 4.75 V at the signal input of the B27/B98 hitch height control potentiometer during the calibration of the hitch control. This excessive voltage indicates a potential issue such as an internal fault in the…

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Error code BCU 303053.04 is triggered when the Basic Control Unit (BCU) of a John Deere vehicle detects a signal voltage below 0.25 V at the input of the B26 sensitivity potentiometer during the calibration of the hitch control. This low voltage reading suggests an issue such as a poor connection, a fault in the…

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Error code BCU 303053.03 is issued when the Basic Control Unit (BCU) of a John Deere vehicle detects a signal voltage over 4.75 V at the input of the B26 sensitivity potentiometer during the calibration of the hitch control. This high voltage reading indicates a potential issue with the potentiometer itself, such as a fault…

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Error code BCU 002876.07 is activated when the Basic Control Unit (BCU) of a John Deere vehicle detects an unrealistic value from the multifunction lever, specifically related to the turn signal function. This diagnostic trouble code indicates a potential issue with the lever’s sensors, wiring, or the electronic interface that interprets the lever’s position or…

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Error code BCU 002876.07 is triggered when the Basic Control Unit (BCU) of a John Deere vehicle detects an unrealistic value from the multifunction lever specifically related to the turn signal operation. This diagnostic trouble code suggests a potential malfunction in the lever itself, such as a sensor issue, wiring fault, or a problem within…

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Error code BCU 002818.31 is an operator information alert issued when the Basic Control Unit (BCU) of a John Deere vehicle detects that the operator presence switch has not been activated despite the operator having selected functions that require presence confirmation. This could indicate that the operator has left the seat or that there is…

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Error code BCU 002392.31 is triggered when the Basic Control Unit (BCU) of a John Deere vehicle detects a malfunction in the circuit of the backup alarm (lead 2077) after the reverse drive lever has been moved to the reverse position. This diagnostic trouble code indicates that the circuit is open, which could be due…

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Error code BCU 002386.19 is triggered when the output for controlling the E27 beacon light on a John Deere vehicle is simultaneously energized by more than one control unit, indicating a conflict or misconfiguration within the vehicle’s CAN bus system. This situation can lead to erratic behavior of the beacon light, including unintended flashing or…

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