Home › Land Rover › 2021 › Range Rover Velar R-Dynamic HSE › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Transfer Case Control Module (TCCM) -- Range Rover Velar/L560 › General Information › Description And Operation › Diagnostic Trouble Code Index - DTC: Transfer Case Control Module (TCCM) (G2933770) › U201A-57: Control Module Main Calibration Data - Invalid/incomplete software component › Possible Causes