John Deere 2028.09 – Steering System Control Unit (XSC): CAN Bus Message Cannot Be Received, Information from ITC Control Software

Data transfer problem or communication loss on the CAN Bus network between the steering control software and the StarFire GPS receiver (Source Address 28). When this fault occurs, the control software will exhibit limited or no functionality, directly affecting the AutoTrac™ assisted steering system and overall vehicle communication.

• 6110M
• 6120M
• 6130M
• 6145M
• 6155M
• 6175M
• 6195M
• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R
• 8235R
• 8245R
• 8260R
• 8285R
• 8295R
• 8310R
• 8310RT
• 8335R
• 8335RT
• 8360R
• 8360RT
• 8400R
• 9470RT
• 9520RT
• 9570RT
• 6145J
• 6165J
• 6180J
• 6205J

1. 1

   Inspect the overall health of the CAN Bus network to ensure there are no systemic communication failures.

2. 2

   Verify that the StarFire receiver (iTC, 3000, 6000, 7000, or 7500) is properly mounted, powered on, and functioning.

3. 3

   Check the wiring harness and connectors between the StarFire receiver and the XSC module for signs of physical damage, corrosion, or loose connections.

4. 4

   Verify that the CAN Bus terminating resistors are intact, as a failed resistor can cause signal interference and drop communication between modules.

1. 1

   Secure Connections

   Disconnect and reconnect the StarFire receiver harness to ensure the pins are clean and securely seated.

2. 2

   Repair/Replace Harness

   If the wiring harness shows signs of chafing, shorts to ground, or open circuits, repair the damaged section or replace the harness.

3. 3

   Replace Terminating Resistor

   If CAN bus voltage/resistance tests indicate a failure, replace the CAN Bus terminator.

4. 4

   Test/Replace Receiver

   If the wiring and network are healthy, the StarFire receiver itself may have suffered internal component failure. Test with a known-good receiver. If the fault clears, the original receiver must be repaired (via a service like Ag Express) or replaced.

5. 5

   Update Software

   Check for and install any available software updates for the XSC module and the StarFire receiver to address potential signal processing bugs.

6. 6

   Clear Codes

   Cycle the key switch, clear the diagnostic trouble codes via the CommandCenter™ display, and test drive the machine to ensure AutoTrac functionality is restored.