Description:

This code indicates that the TCU (Transmission Control Unit) with source address 3 is not responding or has an abnormal update rate over the CAN network. This could be due to communication issues, a fault in the TCU, or wiring problems.

Reaction:

The transmission control system may not receive or transmit data correctly, affecting transmission performance and triggering warning lights or error messages on the dashboard.

Recommendations:

• Inspect CAN Network Wiring:
  • Check the CAN network wiring for any signs of damage, loose connections, or corrosion.
  • Ensure all connectors are properly seated and free from debris.
• Test TCU:
  • Verify that the TCU is functioning correctly and transmitting data at the correct rate.
  • Update the TCU software to the latest version.
  • Replace the TCU if it is found to be faulty.
• Verify Data Integrity:
  • Use diagnostic tools to check the integrity and update rate of data being transmitted over the CAN network.

Note:

Maintaining a healthy CAN network and ensuring all components are properly connected and functioning can help prevent communication issues with the TCU.