Home >> Land Rover >> 2022 >> Defender 110 >> 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 U0055-88: Vehicle Communication Bus D - Bus Off >> Possible Causes