PTF 001504.19 – Operator Presence Switch, Malfunction

PTF 001504.19 (PTF 1504.19)

Code: 001504.19

Shortcode: 1504.19


This error code is generated when the OIC control software cannot determine operator presence and, as a result, cannot provide the CAN bus with any data. A replacement value is transmitted, generating this diagnostic trouble code in the PTF control software. This fault also generates a diagnostic trouble code in the OIC control software, which takes priority.


When this code is detected, the control software may exhibit limited or no functionality.


  • Inspect Operator Presence Switch:
    • Verify the functionality of the operator presence switch using diagnostic tools.
    • Replace the switch if it is found to be faulty.
  • Check Switch Wiring:
    • Inspect the wiring and connections to the operator presence switch for damage or loose connections.
    • Repair or replace any defective components.
  • Update OIC Software:
    • Ensure the OIC control software is up to date.
    • Update the software if necessary.
  • Verify CAN Bus Communication:
    • Use diagnostic tools to ensure that the operator presence data is correctly transmitted over the CAN bus.


Maintaining a functional operator presence switch and reliable CAN bus communication is crucial for the control software’s performance. Regular checks and timely replacements can prevent these issues.

Control Units: John Deere

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