TIQ 520959.14 – INFORMATION FOR OPERATOR: No Valid Signal From Operator Presence Switch During Shifting

TIQ 520959.14 (TIQ )

Code: 520959.14

Shortcode:

Description:

This operator information (diagnostic trouble code) is generated when there is no valid signal indicating that the operator is present during upshifting or downshifting. This may be due to a malfunctioning operator presence switch or issues with the signal transmission.

Reaction:

When this fault is detected, the control software may exhibit limited or no functionality, preventing proper shifting operations.

Recommendations:

  • Inspect Operator Presence Switch:
    • Check the operator presence switch for proper operation.
    • Replace the switch if it is found to be faulty.
  • Verify Signal Transmission:
    • Ensure that the signal from the operator presence switch is being transmitted correctly.
    • Check wiring and connections for any signs of damage or looseness.
  • Check Shifting Mechanism:
    • Inspect the shifting mechanism to ensure it is functioning correctly and not causing signal issues.
  • Consult Technical Support:
    • If the issue persists, contact technical support or the manufacturer for further assistance.

Note:

Regularly inspecting and maintaining the operator presence switch and related components can help prevent issues with signal transmission and ensure safe operation.


Control Units: John Deere