Home › Jaguar › 2017 › XF S, AWD › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Body Control Module (BCM) - LWB -- XF/X260 › Diagnostic Trouble Code Index DTC: Body Control Module (BCM) - LWB › Description And Operation › Body Control Module (BCM) › DTC B1B56-46: Sunroof Module - Calibration/parameter memory failure › Possible Causes