GODIAG GT100+ Breakout Box E-C-U Tool with for BMW CAS4 CAS4+ and FEM BDC Test Platform. GODIAG Auto Tool GT100 ECU Connector OBDII Break Out Box OBDII Protocol Detector. with GODIAG for BMW CAS4 CAS4+ Test Platform, can support All Key Lost, Add New Key, Synchronize Test and Troubleshooting.