Home >> Jaguar >> 2018 >> XF S, AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Diagnostic Trouble Code Index DTC: Adaptive Speed Control Module (ASCM) -- XF/X260 >> Diagnostic Trouble Code Index DTC: Adaptive Speed Control Module (ASCM) >> Description And Operation >> Adaptive Speed Control Module (ASCM) >> DTC U1A00-88: Private Communication Network - Bus off >> Possible Causes