Description:

This diagnostic trouble code, PTQ 523677.31, indicates that no operator is present on the seat for more than 2 seconds while the declutch switch on the range-shift lever is activated. The control software then turns off the function of the clutch switch on the range-shift lever.

Reaction:

When this error is detected, the control software turns off the function of the clutch switch on the range-shift lever. The function will be reactivated when the reverse drive lever is moved through the neutral position.

Recommendations:

Ensure Operator Presence:

• Ensure the operator remains seated while the declutch switch is activated.
• Confirm that the seat switch is properly detecting the operator’s presence.

Inspect Seat Switch:

• Check the seat switch for any signs of malfunction or damage.
• Replace the seat switch if it is found to be defective.

Verify Wiring and Connections:

• Inspect the wiring and connectors associated with the seat switch and declutch switch.
• Ensure all connections are secure and free of corrosion or damage.

Update Software:

• 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 System Performance:

• After addressing the above steps, test the seat switch and declutch switch operation to ensure proper functionality.
• Confirm that the control software reactivates the clutch switch function when the reverse drive lever is moved through neutral.

Note:

• Regular inspection and maintenance of the seat switch and declutch switch can prevent deactivation issues.
• If the issue persists despite taking the above measures, consult technical support or the manufacturer for further assistance.