The configuration of free light ecu does not match.

1. Check the software update: Make sure that the ECU of the vehicle is equipped with the latest software and firmware versions to ensure compatibility with other vehicle components.

2. Check the diagnostic tools: Make a comprehensive diagnosis of the vehicle with appropriate diagnostic tools to determine the specific configuration mismatch. This can be done by connecting to the OBD-II port of the vehicle and scanning the fault code.

3. Contact dealers or technicians: If the above steps can't solve the problem, I suggest you contact Jeep car dealers or authorized technicians to consult them and solve the problem. They will have more professional knowledge and resources to help you.