Home >> Jaguar >> 2018 >> XF S, AWD >> Repair and Diagnosis >> General Information >> DTC Index >> Diagnostic Trouble Code Index DTC: Parking Assist Control Module (PACM) -- XF/X260 >> Diagnostic Trouble Code Index DTC: Parking Assist Control Module (PACM) >> DTC Information >> Description And Operation >> DTC U0001-81: High Speed CAN Communication Bus - Invalid serial data received >> Possible Causes