Description:

This error code, TEI 000629.12, is triggered when an internal fault occurs in the TEC control unit. It signifies that the control unit has encountered an issue that prevents it from operating correctly.

Reaction:

When this fault code is detected, the control unit may operate in a degraded mode or stop functioning entirely, impacting the equipment’s performance.

Recommendations:

Inspect Control Unit Connections:

• Check all connections to the TEC control unit for any signs of damage, loose connections, or corrosion. Secure and repair as necessary.

Reset the Control Unit:

• Perform a hard reset of the control unit by disconnecting the power supply for a few minutes and then reconnecting it.

Update Control Unit Firmware:

• Ensure the TEC control unit firmware is up-to-date. Download and install the latest firmware from the manufacturer’s website.

Replace the Control Unit:

• If the fault persists after resetting and updating the firmware, consider replacing the TEC control unit as it may have a hardware failure.

Consult Technical Support:

• Contact John Deere technical support for further diagnostics and assistance.

Note:

Internal faults can be caused by various issues including electrical surges, software bugs, or hardware failures. Regular maintenance and updates can help prevent such faults.