Home >> Land Rover >> 2021 >> Range Rover SVAutobiography Dynamic Blk. >> Repair and Diagnosis >> General Information >> Specifications Index >> Diagnostic Trouble Code Index DTC: INGENIUM I4 2.0L Petrol PHEV Audio Amplifier Module (AAM) -- Range Rover/L405 >> General Information >> Description And Operation >> Diagnostic Trouble Code Index - INGENIUM I4 2.0L Petrol - PHEV, DTC: Audio Amplifier Module (AAM) (G2201854) >> DTC U201B-55: Control Module Calibration Data #2 - Not configured >> Possible Causes