Description:

This diagnostic trouble code, PTQ 522188.14, indicates that the transmission speed is too high during the shift operation, preventing the transmission from shifting to the commanded gear. The previously selected gear remains engaged, and shifting is not possible until the transmission speed is reduced.

Reaction:

When this error is detected, the control software prevents the transmission from shifting to the commanded gear.

Recommendations:

Reduce Transmission Speed:

• Lower the transmission speed to within acceptable limits before attempting to shift gears.
• Monitor the transmission speed during operation to ensure it does not exceed recommended limits.

Inspect Throttle Control:

• Check the throttle control system for any signs of malfunction or improper adjustment.
• Repair or adjust the throttle control as needed to ensure proper speed regulation.

Verify Gear and Shift Mechanism:

• Ensure that the gear and shift mechanism are functioning correctly and not causing unintended high speeds.
• Repair or replace any defective components in the shift mechanism.

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 transmission shift operation to ensure proper functionality.
• Confirm that the transmission speed remains within acceptable limits during shift operations.

Note:

• Regular inspection and maintenance of the transmission and control systems are essential to prevent high-speed shift issues.
• If the issue persists despite taking the above measures, consult technical support or the manufacturer for further assistance.