Home › Land Rover › 2017 › Range Rover Autobiography › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Body Control Module (BCM) -- Range Rover/L405 › Diagnostic Trouble Code Index DTC: Body Control Module (BCM) › Description And Operation › DTC B13CB-46: Roof Blind Module - Calibration/parameter memory failure › Possible Causes