PTD 523331.03 – Reverse Brake Oil Pressure Sensor Voltage Too High

PTD 523331.03 (PTD )

Code: 523331.03



This diagnostic trouble code is generated when the control software detects that the voltage at the lead of the reverse brake oil pressure sensor is too high, indicating a short circuit.


When this error is detected, the control software may limit or disable the transmission functions, particularly affecting the reverse brake operation.


Inspect Wiring and Connections:

  • Check the wiring and connections to the reverse brake oil pressure sensor for signs of short circuits, damage, or corrosion.
  • Repair or replace any damaged wires or connectors.

Test Oil Pressure Sensor:

  • Perform a diagnostic test on the reverse brake oil pressure sensor to ensure it is not shorted or faulty.
  • Replace the sensor if it is found to be defective.

Check Control Unit:

  • Verify that the control unit is not sending excessive voltage to the sensor.
  • Reprogram or update the control unit software if necessary.

Consult Technical Support:

  • If the issue persists, seek assistance from technical support or a qualified technician for further diagnosis and repair.

Monitor System:

  • After repairs, monitor the voltage levels at the sensor to ensure they remain within the specified range.


Regular inspection and maintenance of the wiring and sensors can help prevent short circuit issues and ensure reliable operation.

Control Units: John Deere

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