Home >> Land Rover >> 2016 >> Range Rover Autobiography >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Diagnostic Trouble Code Index DTC: Adaptive Speed Control Module (ASCM) -- Range Rover/L405 >> Diagnostic Trouble Code Index DTC: Adaptive Speed Control Module (ASCM) >> Description And Operation >> DTC U0046-87: Vehicle Communication Bus C - Missing message >> Possible Causes