RPT 000190.19 – Engine Speed Sensor, Fault

RPT 000190.19 (RPT 190.19)

Code: 000190.19

Shortcode: 190.19


This diagnostic trouble code, RPT 000190.19, is generated when the ECU control software cannot determine the engine speed and, therefore, cannot provide the CAN bus with any relevant data. This results in a transmitted replacement value, triggering the diagnostic trouble code in the RPT control software. When active, this fault also generates a diagnostic trouble code in the ECU 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 affects the overall performance of the equipment, leading to reduced efficiency or operational capability.


Inspect Engine Speed Sensor:

  • Check the engine speed sensor for any visible damage or disconnections.
  • Ensure the sensor is securely mounted and connected properly.

Check Wiring and Connections:

  • Inspect the wiring and connections between the engine speed sensor and the ECU for signs of damage, corrosion, or loose connections.
  • Repair or replace any damaged wires or connectors.

Test Sensor Functionality:

  • Use diagnostic tools to test the functionality of the engine speed sensor.
  • Ensure the sensor is transmitting accurate data to the ECU.

Update Control Software:

  • Verify that the ECU and RPT control software are updated to the latest versions.
  • Install any available patches or updates that address sensor 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.


The priority of the ECU diagnostic trouble code over the RPT code highlights the importance of resolving issues at the ECU level first. Regular maintenance and inspections of sensors and wiring can prevent such faults from occurring.

Control Units: John Deere

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