DTC U1000-4B: Solid State Driver Protection Active - Driver Disabled - Over temperature: Action

Allow the vehicle to cool for at least ten minutes. Make sure that the airflow around the module is not obstructed by mud or other debris. Rectify as required
Using Jaguar Land Rover approved diagnostic equipment, perform the Transfer Case Healthcheck Application. The application will subsequently test the system and report a DTC if a fault persists