Home › Land Rover › 2021 › Discovery S › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: TELEMATIC Control Module (TCU) -- Discovery/L462 › General Information › Description And Operation › Diagnostic Trouble Code Index - DTC: TELEMATIC Control Module (TCU) (G2058462) › DTC U201A-51: Control Module Main Calibration Data - Not programmed › Possible Causes