PTA 524233.03 – Hydrostatic Speed Sensor, Voltage in Channel 1 Too High

PTA 524233.03 (PTA )

Code: 524233.03



This diagnostic trouble code is generated when the PTA control software detects that the voltage at channel 1 of the hydrostatic speed sensor is too high. This indicates a supply voltage problem or that the sensor circuit is open or shorted to a positive lead.


Limited or no function of the transmission until the error is corrected, indicating a critical issue with the hydrostatic speed sensor circuit.


Inspect Sensor Circuit:

  • Check the sensor circuit for any open connections or short circuits to positive leads.
  • Repair any identified issues in the circuit.

Test Hydrostatic Speed Sensor:

  • Measure the voltage at channel 1 using a multimeter.
  • Replace the sensor if it is producing abnormally high voltage readings.

Examine Wiring and Connectors:

  • Inspect all wiring and connectors associated with the hydrostatic speed sensor for signs of damage or corrosion.
  • Repair or replace any damaged components to ensure proper electrical connections.

Ensure Proper Power Supply:

  • Verify that the sensor is receiving the correct supply voltage.
  • Correct any power supply issues that may be causing high voltage readings.


High voltage readings from the hydrostatic speed sensor can lead to severe operational problems. Regular inspection and maintenance of the sensor and its circuitry are essential to prevent these issues.

Control Units: John Deere

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