Description:

This diagnostic trouble code is generated when the PTA control software detects a difference in frequency between the two sensor output signals for hydrostatic speed, indicating that the speed at channel 1 is lower than at channel 2.

Reaction:

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

Recommendations:

Compare Sensor Signals:

• Verify the output signals of both channels to ensure consistency.
• Replace the sensor if there is a significant discrepancy between the two channels.

Inspect Wiring and Connectors:

• Check the wiring and connectors of both channels for signs of damage or disconnection.
• Repair or replace any faulty components.

Ensure Proper Calibration:

• Verify that both channels are properly calibrated to provide accurate speed readings.
• Recalibrate if necessary.

Monitor Vehicle Conditions:

• Ensure the vehicle is not operating under conditions that could cause abnormal speed variations.

Consult Technical Support:

• If the issue persists, consult technical support or the manufacturer for further diagnosis and assistance.

Note:

Accurate synchronization between the two sensor channels is essential for proper transmission operation. Regular monitoring and maintenance of sensors and their circuits can help prevent synchronization issues.