Home › Jaguar › 2014 › XF Base › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code: Tailgate Control Module (TGCM) -- XF/X250 › Diagnostic Trouble Code (DTC) IndexDTC: Tailgate Control Module (TGCM) › Description And Operation › DTC B11C4-23: Boot/Trunk Close Button - Signal stuck low › Possible Causes