Home › Land Rover › 2015 › LR4 Base, 4WD › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Telephone Interface Module (TIM) -- LR4/L319 › Diagnostic Trouble Code Index DTC: Telephone Interface Module (TIM) › Description And Operation › DTC U2017-57: Control Module Software #2 - Invalid/incomplete software component › Possible Causes