Home >> Jaguar >> 2012 >> XJ L >> Repair and Diagnosis >> 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) >> U044A-29 Invalid Data Received From Gateway D - Signal invalid >> Possible Causes