Description:

This diagnostic trouble code, PTQ 000084.14, indicates that no wheel speed is detected while power is flowing through the transmission (clutch pedal released) and the reverse drive lever is in the forward or reverse position. This can be caused by a defective wheel speed sensor or incorrect wheel speed data received via the CAN BUS.

Reaction:

When this error is detected, the control software may experience limited or no functionality, affecting the overall performance and drivability of the tractor.

Recommendations:

Check Wheel Speed Sensor:

• Inspect the wheel speed sensor for any signs of damage or malfunction.
• Replace the sensor if it is found to be defective.

Verify CAN BUS Data:

• Ensure that the wheel speed data received via the CAN BUS is accurate.
• Check the CAN BUS wiring and connections for any loose connections, damage, or corrosion. Repair or replace as necessary.

Software Update:

• Verify that the control software is up-to-date with the latest version.
• Update the software if there are any available updates to improve system accuracy and error handling.

Monitor Transmission Operation:

• After addressing the above steps, test the transmission operation to ensure proper functionality.
• Observe the system to confirm that the error is resolved and that the control software is functioning correctly.

Note:

• Regular maintenance and inspection of the wheel speed sensors and CAN BUS system are essential for preventing this type of error.
• If the issue persists despite taking the above measures, consult technical support or the manufacturer for further assistance. It may indicate a more complex issue within the transmission system or control software.