Home › Land Rover › 2017 › Range Rover Sport HSE Dynamic › Repair and Diagnosis (Single Page) › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Transfer Case Control Module (TCCM) -- Range Rover Sport/L494 › Diagnostic Trouble Code Index DTC: Transfer Case Control Module (TCCM) › Description And Operation › DTC U2016-04: Control Module Main Software - System internal failures › Possible Causes