Home › Jaguar › 2015 › XJR Base › Repair and Diagnosis › General Information › DTC Index › Diagnostic Trouble Code Index DTC: Automatic Temperature Control Module (ATCM) -- XJ/X351 › DIAGNOSTIC TROUBLE CODE (DTC) INDEX DTC: Automatic Temperature Control Module (ATCM) › Description And Operation › Automatic Temperature Control Module (ATCM) › DTC B13C2-49: Front Windscreen/Windshield Misting Sensor - Internal electronic failure › Possible Causes