Home › Jaguar › 2016 › XJR L › Repair and Diagnosis › Quick Lookups › 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 B1429-11: Right Front Cooled/Heated Seat Module Blower #2 Motor Speed Control - Circuit short to ground › Possible Causes