Home › Land Rover › 2013 › Range Rover Sport Autobiography › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Dynamic Response Control Module (DRM) -- Range Rover Sport/L320 › Diagnostic Trouble Code Index DTC: Dynamic Response Control Module (DRM) › Description And Operation › DTC U0403-68: Invalid Data Received From Transfer Case Control Module - Event information › Possible Causes