Description:

This code indicates that the Transmission Control Unit (TCU) is not responding, or the data being received is erratic, intermittent, or incorrect. This can be caused by communication issues within the CAN network, a faulty TCU, or problems with the wiring and connectors.

Reaction:

The transmission defaults to neutral, which can prevent the vehicle from moving, leading to potential safety hazards. A warning light or message may appear on the dashboard.

Recommendations:

• Inspect TCU and Wiring:
  • Check the TCU for proper operation and ensure it is securely connected.
  • Inspect the wiring harness and connectors for signs of damage, loose connections, or corrosion.
• Test CAN Network:
  • Verify that the CAN network is functioning correctly and that there are no communication errors.
  • Use diagnostic tools to check for and address any CAN bus faults.
• Replace or Reprogram TCU:
  • If the TCU is found to be faulty, replace it with a new unit.
  • Reprogram the TCU with the latest software updates.
• Check Power Supply:
  • Ensure the TCU is receiving a stable power supply without interruptions.

Note:

Regular maintenance and inspection of the transmission system and CAN network can help prevent issues and ensure reliable operation.