Description:

This error code indicates that the suspended front axle (SFA) control unit is not receiving the required messages from the AutoPowr™/IVT™ (PTI) or PowerShift (PTP) control unit. This can occur due to communication issues, wiring problems, or faults within either control unit.

Reaction:

When this error code is triggered, the SFA system may not operate correctly, leading to degraded ride quality and handling performance. It can also affect the synchronization and functionality of the transmission system.

Recommendations:

• Check Communication Cables:
  • Inspect the communication cables between the SFA control unit and the PTI/PTP control units for any signs of damage, loose connections, or corrosion. Repair or replace any faulty cables.
• Verify Control Unit Connections:
  • Ensure all connections to the PTI and PTP control units are secure and free from corrosion. Clean and tighten connections as necessary.
• Update Control Unit Software:
  • Ensure that the software for the SFA, PTI, and PTP control units is up-to-date. Update the software if necessary to correct any communication issues.
• Test Control Units:
  • Test the PTI and PTP control units to ensure they are functioning correctly and sending the required messages. Replace any defective control units.
• Consult Technical Support:
  • If the issue persists, consult technical support or the manufacturer for further assistance in diagnosing and resolving the communication problem.

Note:

Ensuring proper communication between control units is essential for coordinated system operation and optimal performance. Regular inspection and maintenance of communication cables and connections can help prevent these issues.