Description:

This diagnostic trouble code, TSC 000190.19, is triggered when the ECU transmits an engine speed between 100 and 500 rpm for longer than 5 seconds while the tractor is stationary. This can occur if the engine speed drops suddenly or if the ECU sends incorrect engine speed data while the tractor is not in motion.

Reaction:

When this error occurs, it may result in improper engine performance, affecting the tractor’s stationary operations and potentially causing stalling or other issues.

Recommendations:

Verify Engine Operation:

• Check Engine Speed:
  • Ensure the engine maintains a stable speed while the tractor is stationary.
  • Investigate and resolve any issues causing sudden drops in engine speed.

Inspect ECU and Sensors:

• Check ECU Functionality:
  • Ensure the ECU is functioning correctly and not transmitting incorrect engine speed data.
  • Replace or reprogram the ECU if necessary.
• Check Engine Speed Sensor:
  • Inspect the engine speed sensor for proper operation.
  • Replace the sensor if it is faulty.

Validate CAN BUS Communication:

• Check CAN BUS Data Integrity:
  • Ensure that CAN BUS communications are functioning correctly and no erroneous messages are being transmitted.
  • Repair or replace any faulty CAN BUS components.

Note:

Maintaining accurate engine speed data while the tractor is stationary is important for operational stability. Regularly inspect and maintain the ECU and engine speed sensor to prevent errors.