Home › Land Rover › 2013 › Range Rover Sport Autobiography › Repair and Diagnosis (Single Page) › Quick Lookups › Common Specs & Procedures › Diagnostic Trouble Code Index DTC: Tailgate Control Module (TGCM) -- Range Rover Sport/L320 › Diagnostic Trouble Code Index DTC: Tailgate Control Module (TGCM) › Description And Operation › DTC U3000-45: Control Module - Program memory failure › Possible Causes