Home › Land Rover › 2021 › Range Rover Evoque R-Dynamic S › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Tailgate Control Module (TGCM) -- Range Rover EVOQUE/L551 › Diagnostic Trouble Code Index - DTC: Tailgate Control Module (TGCM) (G2010847) › Description And Operation › Tailgate Control Module (TGCM) › DTC U201A-51: Control Module Main Calibration Data - Not programed › Possible Causes