Home › Jaguar › 2012 › XJ Base › Repair and Diagnosis › General Information › DTC Index › Diagnostic Trouble Code (DTC) Index DTC: Camera Control Module (CCM) -- XJ/X351 › DIAGNOSTIC TROUBLE CODE (DTC) INDEX DTC: Camera Control Module (CCM) › Description And Operation › Camera Control Module (CCM) › U044A-29 Invalid Data Received From Gateway D - Signal invalid › Possible Causes