Description:

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.

Reaction:

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

Recommendations:

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.

Note:

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.