Description:

This error code, TEI 523652.02, is saved when the TEC control unit detects an erroneous signal in the circuit of the control unit identification. This usually occurs when the control unit is connected to the wrong wiring harness connector.

Reaction:

When this fault code is detected, the control unit may not function correctly due to incorrect wiring, leading to improper equipment operation or diagnostics.

Recommendations:

Inspect Wiring Harness Connections:

• Check all wiring harness connections to ensure the control unit is connected to the correct connector. Look for any signs of incorrect connections or wiring errors.

Correct Misconnections:

• Correct any misconnections by referring to the wiring diagrams and ensuring all connections are made to the appropriate connectors.

Reset the Control Unit:

• Perform a hard reset by disconnecting the power supply for a few minutes and then reconnecting it to clear any erroneous signals.

Consult Technical Support:

• Contact John Deere technical support for further diagnostics and assistance in verifying and correcting the wiring connections.

Note:

Proper wiring and connections are crucial for the correct functioning of the control unit and overall equipment operation. Regular inspections can prevent such issues.