XMC codes

Comprehensive John Deere XMC Fault Codes List for AutoTrac™ Systems

The John Deere XMC control software, integrated with the XSC control software, manages the AutoTrac™ automatic steering system. The XMC software, housed in the steering control unit, processes signals from various sensors and modules to ensure precise steering control. Below is a detailed overview of common John Deere XMC error codes, their implications, and where these issues typically arise.

Key Components and Signal Processing

The XMC control software receives and processes signals from:

  • Steering Wheel Position Sensor
  • Wheel Angle Sensor
  • LIN Bus Module (Shift Console)
  • LIN Bus Module (Position H)

These signals are compared with the XSC control software values and transmitted to:

  • Solenoid Valve for Steering Control Valve (Enable Valve)
  • Solenoid Valve for Steering Control Valve (Left Turn)
  • Solenoid Valve for Steering Control Valve (Right Turn)

Constant comparison of setpoints and actual values ensures necessary corrections for optimal performance.

Common John Deere XMC Error Codes

XMC 000110.00 – Coolant Temperature Very High

Location: Coolant system Description: Indicates excessively high coolant temperature. Impact: Limits or disables control software functions to prevent engine damage. Solution: Check coolant levels, radiator, thermostat, and engine fan.

XMC 000609.12 – Control Software Internal Fault

Location: Control software initialization Description: Fault due to older software version compared to XSC control software. Impact: Limits or disables control software functions. Solution: Update XMC software to the latest version.

XMC 000629.02 – Control Software Internal Fault

Location: Software launch process Description: Fault during software launch, possibly due to corruption or hardware issues. Impact: Limits or disables control software functions. Solution: Reboot system, reinstall software, check hardware components.

XMC 000639.12 – Vehicle CAN-BUS (500 kBd), High Error Rate

Location: CAN-BUS network Description: High error rate on the vehicle CAN-BUS, possibly due to defective terminating resistor. Impact: Limits or disables control software functions. Solution: Inspect CAN-BUS wiring, verify terminating resistors, monitor CAN traffic.

XMC 522848.05 – Steering Control Valve, Open Circuit

Location: Steering control valve (steer left) Description: Current too low, indicating an open circuit. Impact: Limits or disables control software functions. Solution: Inspect wiring for breaks, test continuity, check electrical connections.

Summary of John Deere XMC Diagnostic Trouble Codes

John Deere XMC diagnostic trouble codes list and John Deere XMC error codes list provide essential information for maintaining and troubleshooting the AutoTrac™ automatic steering system. Understanding and addressing these common error codes helps ensure reliable and efficient operation of John Deere equipment.

For detailed troubleshooting and repair, always refer to the specific John Deere service manual corresponding to your equipment model. Regular maintenance and timely software updates are crucial for preventing and resolving these diagnostic trouble codes.