TSC 000190.31 – Incorrect CAN BUS Message, Engine Speed from ECU (While in Motion)

TSC 000190.31 (TSC 190.31)

Code: 000190.31

Shortcode: 190.31

Description:

This diagnostic trouble code, TSC 000190.31, is triggered when the ECU transmits an engine speed between 100 and 500 rpm for longer than 5 seconds while the tractor is in motion. This can occur due to a sudden drop in engine speed or if the ECU sends incorrect engine speed data while the tractor is moving.

Reaction:

When this error occurs, it may lead to improper engine performance, potentially causing the tractor to experience power loss, reduced speed, or stalling during operation.

Recommendations:

Verify Engine Operation:

  • Check Engine Speed:
    • Ensure the engine maintains a stable speed during operation.
    • 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:

Accurate engine speed data is critical for safe and efficient tractor operation. Regular inspection and maintenance of the ECU and engine speed sensor are essential to prevent operational disruptions.


Control Units: John Deere