Description:

This diagnostic trouble code, TSC 000190.17, is triggered when the ECU transmits an engine speed between 100 and 500 rpm for longer than 5 seconds. This can occur due to a sudden drop in engine speed or if the ECU sends incorrect engine speed data.

Reaction:

When this error is detected, it may lead to improper engine performance, affecting the tractor’s operations and potentially causing stalling or other issues.

Recommendations:

Verify Engine Operation:

• Check Engine Speed:
  • Ensure the engine is operating within the normal speed range.
  • 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:

Regular monitoring of the ECU and engine speed sensor is crucial to ensure accurate engine speed data. Address any issues promptly to prevent disruptions in tractor operations.