Home >> Land Rover >> 2021 >> Defender 110 X-Dynamic SE >> Repair and Diagnosis >> General Information >> Specifications Index >> Diagnostic Trouble Code Index DTC: Transfer Case Control Module (TCCM) -- Defender/L663 >> Diagnostic Trouble Code Index - DTC: Transfer Case Control Module (TCCM) (G2400921) >> Description And Operation >> Transfer Case Control Module (TCCM) >> DTC U0080-87: Vehicle Communication Bus F - Missing message >> Possible Causes