Home › Land Rover › 2016 › Discovery Sport HSE › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Transmission Control Module (TCM) -- Discovery Sport/L550 › Diagnostic Trouble Code Index DTC: Transmission Control Module (TCM) › Description And Operation › DTC U0422-86: Invalid Data Received From Body Control Module - Signal invalid › Possible Causes