Home >> Land Rover >> 2013 >> Range Rover Sport HSE >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Diagnostic Trouble Code Index DTC: Module Name: Transfer Case Control Module -- Range Rover Sport/L320 >> Diagnostic Trouble Code Index DTC: Module Name: Transfer Case Control Module >> Description And Operation >> DTC U0001-88: High Speed CAN Communication Bus - Bus off >> Possible Causes