Home >> Jaguar >> 2012 >> XJ Base >> Repair and Diagnosis (Single Page) >> Quick Lookups >> 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) >> U0447-29 Invalid Data Received From Gateway A - Signal invalid >> Possible Causes