Description:

This diagnostic trouble code is generated if park lock commands sent on the CAN BUS from the UIC (User Interface Controller) to the PLC via the TCU (Transmission Control Unit) do not match the direction signals from the reverse drive lever. When active, this code also generates a diagnostic trouble code at the UIC control unit or TCU control unit.

Reaction:

The equipment may experience erratic operation of the reverse drive lever, potentially affecting vehicle control and safety.

Recommendations:

• Inspect CAN BUS Communication:
  • Check for any loose, damaged, or corroded wires in the CAN BUS network between the UIC, TCU, and PLC. Repair or replace as necessary.
• Verify Connections:
  • Ensure all connectors are properly seated and secure. Tighten any loose connections.
• Test Reverse Drive Lever:
  • Verify the operation of the S80 reverse drive lever. Replace if faulty.
• Update Software:
  • Ensure the UIC, TCU, and PLC have the latest software updates to improve communication reliability.

Note:

Regular maintenance and inspections of the CAN BUS network can prevent communication mismatches, ensuring reliable operation of the reverse drive lever and associated systems.