Home >> Land Rover >> 2021 >> Defender 110 X-Dynamic HSE >> Repair and Diagnosis >> General Information >> Specifications Index >> Diagnostic Trouble Code Index DTC: Interactive Display Module A (IDMA) -- Defender/L663 >> Diagnostic Trouble Code Index - DTC: Interactive Display Module A (IDMA) (G2308466) >> Description And Operation >> Interactive Display Module A (IDMA) >> DTC U201A-56: Control Module Main Calibration Data - Invalid/Incomplete Configuration >> Possible Causes