RPT 001504.19 – Operator Presence Switch, Malfunction

RPT 001504.19 (RPT 1504.19)

Code: 001504.19

Shortcode: 1504.19


This diagnostic trouble code, RPT 001504.19, is generated when the OIC (Operator Information Center) control software cannot determine the presence of the operator and thus cannot provide the CAN bus with any relevant data. A transmitted replacement value generates this diagnostic trouble code in the RPT control software. When active, this fault also generates a diagnostic trouble code in the OIC control software, which takes priority over the RPT code.


When this error is detected, the functionality of the control software is significantly limited or entirely non-functional. This impacts the overall performance of the equipment, leading to reduced efficiency or operational capability.


Inspect Operator Presence Switch:

  • Check the operator presence switch for any visible damage or disconnections.
  • Ensure the switch is securely mounted and connected properly.

Check Wiring and Connections:

  • Inspect the wiring and connections between the operator presence switch and the OIC for signs of damage, corrosion, or loose connections.
  • Repair or replace any damaged wires or connectors.

Test Switch Functionality:

  • Use diagnostic tools to test the functionality of the operator presence switch.
  • Ensure the switch is transmitting accurate data to the OIC.

Update Control Software:

  • Verify that the OIC and RPT control software are updated to the latest versions.
  • Install any available patches or updates that address switch communication issues.

Consult Technical Support:

  • If the problem persists, consult with technical support or the equipment manufacturer for further assistance.
  • Provide detailed error logs and diagnostic reports to aid in troubleshooting.

Monitor System Performance:

  • After addressing the issue, monitor the system for any recurrence of the fault.
  • Keep detailed records of any further errors or irregularities to assist in ongoing troubleshooting.


Ensuring the operator presence switch is functioning correctly is crucial for the safe and efficient operation of the equipment. Regular maintenance and inspections of sensors and wiring can prevent such faults from occurring.

Control Units: John Deere

John Deere Parts
John Deere Logo