Home >> Land Rover >> 2018 >> Range Rover Autobiography >> Repair and Diagnosis >> General Information >> DTC Index >> Diagnostic Trouble Code Index DTC: Image Processing Module (IPMA) -- Range Rover/L405 >> Diagnostic Trouble Code Index DTC: Image Processing Module (IPMA) >> Description And Operation >> DTC U0001-88: High Speed CAN Communication Bus - Bus off >> Possible Causes