Home › Land Rover › 2013 › Range Rover Evoque Pure › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: TELEMATIC Control Module (TCU) -- Range Rover EVOQUE/L538 › Diagnostic Trouble Code Index DTC: TELEMATIC Control Module (TCU) › Description And Operation › DTC U201A-54: Control Module Main Calibration Data - Missing calibration › Possible Causes