Diagnostic trouble code BCU 523908.31 is an informational alert generated to inform the operator that the rear PTO (Power Take-Off) can now be activated using the remote control switch. This notification serves to enhance operational awareness, ensuring that operators are conscious of their ability to engage the PTO remotely. Such information is crucial for managing…
- John Deere error BCU codes
- John Deere error BCU codes
Diagnostic trouble code BCU 523908.14 is an informational alert generated when the remote control switch for the rear PTO (Power Take-Off) is activated. This code serves to inform the operator that the rear PTO has been engaged remotely, ensuring awareness of the PTO’s operational status. This is particularly important for safety and operational efficiency, as…
- John Deere error BCU codes
Diagnostic trouble code BCU 523905.31 is generated when the Basic Control Unit (BCU) detects an open circuit to the front PTO (Power Take-Off) solenoid valve. This issue indicates that there is a discontinuity or a break in the electrical path that should be delivering current to the solenoid valve, which controls the operation of the…
- John Deere error BCU codes
Diagnostic trouble code BCU 523904.31 is issued as an informational alert when the front PTO (Power Take-Off) is engaged without the operator presence switch being activated. This situation generally indicates that the operator has left the seat while the PTO is still operating, which poses a safety risk. The alert is designed to notify the…
- John Deere error BCU codes
Diagnostic trouble code BCU 523843.04 is generated when the Basic Control Unit (BCU) detects that the voltage at the signal input of the quick withdrawal switch falls below 1 volt, indicating a malfunction within the circuit of the quick withdrawal switch. This low voltage could be due to a variety of issues, such as poor…
- John Deere error BCU codes
Diagnostic trouble code BCU 523843.03 is generated when the Basic Control Unit (BCU) detects that the voltage at the signal input of the quick withdrawal switch exceeds 10.5 volts, indicating a malfunction within the circuit of the quick withdrawal switch. Additionally, this code may be triggered due to an operating error, such as the switch…
- John Deere error BCU codes
Diagnostic trouble code BCU 523843.02 is activated when the Basic Control Unit (BCU) detects an undefined voltage at the signal input of the quick withdrawal switch. This condition suggests that the voltage level is either too high or too low, falling outside the expected range, which typically indicates a malfunction in the circuit of the…
- John Deere error BCU codes
Diagnostic trouble code BCU 523839.31 is generated as an informational alert when the Basic Control Unit (BCU) detects wheel speed despite the handbrake being engaged. This condition indicates that the vehicle is in motion or experiencing wheel movement while the handbrake is supposedly active, which could suggest a malfunction of the handbrake system or incorrect…
- John Deere error BCU codes
Diagnostic trouble code BCU 523839.14 is generated as an informational alert when the Basic Control Unit (BCU) detects that a gear has been selected while the handbrake is engaged. This situation is noted as potentially hazardous or indicative of an operational oversight. Importantly, this code is not stored in the control unit’s error memory, as…
- John Deere error BCU codes
Diagnostic trouble code BCU 523834.04 is generated when the Basic Control Unit (BCU) detects a voltage lower than 0.25 V at the signal input of the depth setting potentiometer. This unusually low voltage typically indicates a malfunction within the circuit of the depth setting potentiometer, possibly due to a break in the circuit, poor connections,…
- John Deere error BCU codes
Diagnostic trouble code BCU 523834.03 is triggered when the Basic Control Unit (BCU) detects a voltage higher than 4.75 V at the signal input of the depth setting potentiometer. This abnormal voltage typically indicates a malfunction within the circuit of the depth setting potentiometer, which could be due to issues such as a short to…


