Error code BCU 523806.12 is activated when the Power Module PC5 in a John Deere vehicle detects a current flow of more than 1 amp at the output for the Y75 solenoid controlling PTO Speed 3, even though the solenoid is switched off. This diagnostic trouble code indicates a potential short in the circuit or…

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Error code BCU 523806.09 is triggered when there is a communication failure between the Power Module PC5 and the Basic Control Unit (BCU) specifically related to the Y75 solenoid for PTO Speed 3. This diagnostic trouble code indicates issues in the CAN (Controller Area Network) bus messages, where transmission from the BCU to the power…

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Error code BCU 523806.05 is activated when the Power Module PC5 in a John Deere vehicle detects a current of less than 500 mA at the output to the Y75 solenoid controlling PTO Speed 3 (lead 7115) while it is switched on. This diagnostic trouble code indicates an open circuit within the electrical system powering…

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Error code BCU 523806.04 is activated when the Power Module PC5 in a John Deere vehicle detects an excessive current draw of more than 30 amps from the Y75 solenoid controlling PTO Speed 3 (lead 7115) while it is switched on. This diagnostic trouble code typically indicates a short to ground within the circuit, which…

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Error code BCU 523806.01 is triggered when the Power Module PC5 in a John Deere vehicle measures a supply voltage of less than 3 volts at the output designated for the Y75 solenoid controlling PTO Speed 3, specifically on lead 0232, protected by fuse F02 PLB/02. This diagnostic trouble code indicates a potential power supply…

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Error code BCU 523806.00 is triggered when the Power Module PC5 in a John Deere vehicle measures a total amperage exceeding 40 amps at outputs B3, C3, and D3, specifically linked to the Y75 solenoid for PTO Speed 3. This diagnostic trouble code indicates a potential short to ground or a defective component within the…

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Error code BCU 523760.31 is triggered when the Basic Control Unit (BCU) of a John Deere vehicle detects an open circuit in the turn signal/hazard flasher system upon ignition. This diagnostic trouble code suggests a discontinuity or break in the electrical pathway necessary for the operation of the turn signal and hazard flasher system, which…

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Error code BCU 523760.04 is triggered when the Basic Control Unit (BCU) of a John Deere vehicle detects a supply voltage below 12 volts at the inputs for the turn signal/hazard flasher system. This diagnostic trouble code indicates insufficient voltage to operate the turn signal and hazard flasher system effectively, which could be due to…

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Error code BCU 523759.11 is triggered when the Basic Control Unit (BCU) of a John Deere vehicle detects an unrealistic value from the switch used for remote control of the rear Power Take-Off (PTO) on the left side. This diagnostic trouble code suggests a potential malfunction of the switch, possibly due to internal defects, wiring…

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Error code BCU 523758.11 is triggered when the Basic Control Unit (BCU) of a John Deere vehicle detects an unrealistic value from the switch used for remote control of the rear Power Take-Off (PTO) on the right side. This diagnostic trouble code suggests that the switch may be malfunctioning, possibly due to internal electrical issues…

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Error code BCU 523756.18 is activated when the Basic Control Unit (BCU) of a John Deere vehicle detects that the lowering deadband—the minimal play between the adjustment cam of the stepper motor and the lower valve of the hitch valve—is below the specified minimum tolerance during the calibration process. This condition indicates that the components…

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