Description:

This error code, XSC 523821.02, indicates that the control unit is connected to an incorrect harness, which is incompatible with the steering control unit (AutoTrac™). This misconnection can lead to communication failures and improper operation of the steering system.

Reaction:

When this fault occurs, the control software will exhibit limited or no functionality, particularly affecting the AutoTrac™ system.

Recommendations:

Verify Harness Connection:

• Ensure that the control unit is connected to the correct harness.
• Check for part numbers and compatibility information to confirm the harness is appropriate for the steering control unit.

Inspect Harness for Damage:

• Check the harness for any signs of damage, wear, or incorrect connections.
• Replace the harness if it is found to be incompatible or damaged.

Update Control Software:

• Check for and install any available updates for the control software to address potential bugs or compatibility issues.

Consult Technical Support:

• If the issue remains unresolved, contact John Deere technical support for further diagnostics and assistance.
• Provide information about the harness and control unit connections and any steps already taken to address the fault.

Note:

Using the correct and compatible harness for the steering control unit (AutoTrac™) is crucial for ensuring proper functionality and operation. Regular inspections and proper connections help maintain system reliability and performance.