John Deere 523813 – RPT (Rear PTO / Rear Chassis Controller) or BCU (Basic Control Unit) / PC5 (Power Module): Rear PTO Speed 1 Solenoid Overload Cut-Out

Fault code 523813.00 indicates that the control module has detected a current overload on the circuit for the Rear PTO Speed 1 Solenoid (Y73). The system triggers this code when the total amperage exceeds the safe threshold (e.g., exceeding 40 amps) while the solenoid is activated. This typically points to a short circuit to ground in the wiring harness, a shorted internal coil within the solenoid itself, or a defective component in the monitored circuit. As a safety reaction, the controller cuts power to the circuit, rendering the rear PTO significantly limited or entirely non-functional.

• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R
• 6230R
• 6250R
• 6105M
• 6110M
• 6115M
• 6120M
• 6130M
• 6140M
• 6150M
• 6155M
• 6175M
• 6195M
• 6230
• 6330
• 6430
• 6530
• 6630
• 6830
• 6930
• 7130
• 7230
• 7430
• 7530

1. 1

   Inspect the Solenoid Circuit: Visually inspect the wiring harness and connectors leading to the Y73 PTO Speed 1 solenoid for signs of chafing, melting, pinched wires, or a short to ground.

2. 2

   Test Solenoid Resistance/Operation: Disconnect the PTO Speed 1 solenoid and use a multimeter to check the internal resistance of the coil. A reading of zero or near-zero ohms indicates an internally shorted solenoid.

3. 3

   Verify Current and Voltage Levels: Use diagnostic tools to measure the current draw and voltage at the solenoid connector when the PTO is commanded on. Ensure it does not spike above the specified range.

4. 4

   Check Software: Ensure the PAP (Power Accessory Point) control software or BCU is updated to the latest version, as some updates address overly sensitive current regulation issues.

1. 1

   Disconnect Power

   Turn off the tractor and disconnect the battery to prevent accidental shorts during repair.

2. 2

   Repair Wiring (If Applicable)

   If the diagnostic checks revealed chafed or shorted wiring in the harness leading to the rear chassis/PTO valve block, repair the damaged sections using OEM-approved waterproof splices or replace the affected harness section.

3. 3

   Replace the Solenoid (If Faulty)

   Locate the PTO valve block at the rear chassis and identify the Y73 PTO Speed 1 solenoid. Clean the area around the valve block, disconnect the electrical connector, and unscrew and remove the faulty solenoid valve cartridge from the manifold. Lubricate the O-rings on the new solenoid with clean hydraulic oil, install the new solenoid and torque it to the manufacturer's specification, and reconnect the electrical harness.

4. 4

   Clear Codes and Test

   Reconnect the battery, clear the 523813.00 fault code using a diagnostic tool, and engage the PTO Speed 1 to verify that the current draw is normal and the code does not return.