PTA 524233.04 – Hydrostatic Speed Sensor, Voltage in Channel 1 Too Low

PTA 524233.04 (PTA )

Code: 524233.04



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 low. This indicates a short to ground in the sensor circuit.


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 short circuits to ground.
  • 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 low 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 Grounding:

  • Verify that the sensor circuit is properly grounded.
  • Correct any grounding issues that may be causing low voltage readings.


Low 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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