John Deere 522976.12 – XMC: Control Software Internal Fault

This fault indicates an internal software or identification problem within the AutoTrac Main Control Unit (XMC). The system detects that the control software may be connected to the wrong wiring harness, programmed incorrectly, or experiencing an internal software/hardware mismatch, leading to improper operation of the automatic steering system.

• 6110M
• 6120M
• 6130M
• 6145M
• 6155M
• 6175M
• 6195M
• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R
• 8235R
• 8245R
• 8260R
• 8285R
• 8310R
• 8310RT
• 8335R
• 8335RT
• 8360R
• 8360RT
• 8400R
• 7210R
• 7230R
• 7250R
• 7270R
• 7290R
• 6145J
• 6165J
• 6180J
• 6205J
• 6210J

1. 1

   Power Cycle: Restart the system (key off, wait, key on) to reset the control software and see if the code clears on its own.

2. 2

   Harness Verification: Inspect the wiring harness connected to the XMC module. Verify that the module is plugged into the correct harness connectors and that the pins are free of corrosion or damage.

3. 3

   Software Check: Check the current software version of the XMC module via the GreenStar display or John Deere Service Advisor to see if it is outdated or corrupted.

4. 4

   Run Diagnostics: Utilize built-in diagnostic tools (Service Advisor) to check for accompanying XSC or CAN Bus communication codes (like XMC 522920.09) that might indicate a broader network issue.

1. 1

   Reprogram the Module

   Connect John Deere Service Advisor (or use the receiver USB port if applicable) and reprogram the XMC control unit using the latest, officially signed software payload.

2. 2

   Perform Calibrations

   After a successful software flash, execute all necessary system configurations and calibrations, including the Wheel Angle Sensor (WAS) calibration and the Steering Valve calibration.

3. 3

   Clear Codes

   Delete the diagnostic trouble codes from the system.

4. 4

   Test Operation

   Cycle the key and test the AutoTrac system to ensure proper functionality.

5. 5

   Module Replacement

   If the Service Advisor tool cannot reprogram the unit, or if the 522976.12 code immediately returns after a successful flash, the internal memory/hardware of the XMC has failed and the Steering System Control Unit must be replaced.