What these modules do
CAS, FEM and BDC generations handle critical vehicle-access, immobilizer, terminal-control and body-electronics functions. Because they are tied into vehicle identity and security relationships, used replacement modules usually require specialized handling rather than simple plug-in installation.
Common reasons customers contact us
- Failed or damaged CAS/FEM/BDC
- Used replacement module needs to be prepared or matched
- Programming or key-add attempt left the module in a bad state
- Water intrusion or electrical damage
- DME and security module no longer agree after replacement work
FEM / BDC cloning
When the original module can be read, cloning may allow the relevant vehicle data to be transferred into a compatible replacement. When it cannot, the repair path depends on the exact failure and available vehicle/module data.
Security-module work is vehicle-specific. We confirm the required components and method before you ship anything.