Home › Jaguar › 2018 › F-Pace Base › Repair and Diagnosis › Quick Lookups › DTC Index › Diagnostic Trouble Code Index DTC: Tailgate Control Module (TGCM) - F-Pace › Diagnostic Trouble Code Index DTC: Tailgate Control Module (TGCM) › Description And Operation › Tailgate Control Module (TGCM) › DTC B11C4-23: Boot/Trunk Close Button - Signal stuck low › Possible Causes