Home › Jaguar › 2013 › XJ Base, AWD › 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) › U2023-41 Control Module Network Signal Calibration Data - General checksum failure › Possible Causes