Home >> Land Rover >> 2021 >> Defender 110 X-Dynamic SE >> Repair and Diagnosis >> General Information >> Specifications Index >> Diagnostic Trouble Code Index DTC: Rear HVAC Control Module (RHVAC) - Without Rear Air Conditioning -- Defender/L663 >> Diagnostic Trouble Code Index - DTC: Rear HVAC Control Module (RHVAC) - Without Rear Air Conditioning (G2400911) >> Description And Operation >> Rear Integrated Control Panel (FCIMB) - Without Auxiliary Climate Control >> DTC U2300-56: Central Configuration - Invalid/incomplete configuration >> Possible Causes