The diagnostic trouble code BCU 523760.31 is triggered when the Body Control Unit (BCU) detects an open circuit in the turn signal/hazard flasher system immediately after the ignition is turned on. This indicates a disconnection or break in the electrical circuit responsible for operating the turn signals and hazard flashers, potentially affecting the vehicle’s ability…
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John Deere error BCU codes
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John Deere error BCU codes
The diagnostic trouble code BCU 523760.04 is generated when the Body Control Unit (BCU) detects a supply voltage of less than 12 volts at the inputs for the turn signal/hazard flasher system. This low voltage condition indicates a potential issue within the vehicle’s electrical system that could affect the functionality and reliability of the turn…
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John Deere error BCU codes
Diagnostic trouble code BCU 523759.11 is issued when the Body Control Unit (BCU) detects an unrealistic value from the S44 remote control switch for the rear Power Take-Off (PTO) on the left side. This anomaly suggests a malfunction within the switch or its associated circuitry, potentially due to faulty wiring, a defective switch, or interference…
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John Deere error BCU codes
The diagnostic trouble code BCU 523758.11 is generated when the Body Control Unit (BCU) detects an unrealistic value from the S121 remote control switch for the rear Power Take-Off (PTO) on the right side. This error typically indicates a fault in the switch itself or in its connection to the BCU, which could be due…
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John Deere error BCU codes
Diagnostic trouble code BCU 523756.18 is triggered when the lowering deadband—defined as the clearance between the adjustment cam of the stepper motor and the lower valve of the hitch valve—is found to be excessively low during calibration. This limited clearance can result in mechanical interference, which might cause premature wear of the components or affect…
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John Deere error BCU codes
The diagnostic trouble code BCU 523756.16 is issued when the lowering deadband—defined as the play between the adjustment cam of the stepper motor and the lower valve of the hitch valve—is found to be excessively high during calibration. This larger-than-optimal gap can lead to inefficient hitch operation, potentially causing delayed or imprecise movements in the…
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John Deere error BCU codes
Diagnostic trouble code BCU 523753.18 is activated when the raising deadband—the clearance between the adjustment cam of the stepper motor and the raise valve of the hitch valve—is found to be excessively low during calibration of the stepper motor for the hitch. This insufficient clearance can lead to mechanical interference, potentially causing rapid wear or…
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John Deere error BCU codes
The diagnostic trouble code BCU 523753.16 is generated when the raising deadband—defined as the play between the adjustment cam of the stepper motor and the raise valve of the hitch valve—is found to be excessively large during calibration of the stepper motor for the hitch. This condition indicates that the gap is greater than the…
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John Deere error BCU codes
The diagnostic trouble code BCU 523751.06 is activated when the Body Control Unit (BCU) detects an excessive current in leads 7058 and 7059, which are connected to the stepper motor for the hitch (coil 1). This high current condition often indicates a short to ground within the circuit, potentially leading to overheating, damage to the…
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John Deere error BCU codes
The diagnostic trouble code BCU 523751.05 is triggered when the Body Control Unit (BCU) detects abnormally high voltage at the output to the stepper motor for the hitch (coil 1), specifically in leads 7058 and 7059. This high voltage condition typically indicates an open circuit, which means there is a disconnection or break in the…
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John Deere error BCU codes
The information code BCU 523749.31 is displayed to the operator when the rear Power Take-Off (PTO) is not operating in proportion to the engine speed. This situation suggests a potential issue with the PTO control system, where the PTO speed does not adjust according to changes in engine speed, possibly due to mechanical or electronic…