Keyfree System Code (Keyless start control system ID code, Registered, Unregistered)
WARNING: This page is about a different car, the 2007 Suzuki SX4. However, it is still accessible from the selected car via links, so may be relevant.
Registered: ID code of the Keyless start system is registered in the ECM.
Unregistered: ID code of the Keyless start system is unregistered in the ECM.