
The SKREEM also stores the RKE system Customer Programmable feature settings received over the CAN data bus from the EVIC circuitry of the CCN.

The SKREEM communicates and shares resources with the TIPM and many other electronic modules in the vehicle over the CAN data bus. It ignores requests from any transmitter for which it has no stored vehicle access code. The SKREEM validates the vehicle access code of each RKE transmitter from which it receives RF signal inputs. The Sentry Key REmote Entry Module (SKREEM) (also known as the Wireless Control Module(WCM) or the Sentry Key Immobilizer Module (SKIM)) is the primary RKE system controller as well as the Radio Frequency (RF) RKE receiver.

The Remote Keyless Entry (RKE) system uses non-switched battery current received through a fused B(+) fuse in the Totally Integrated Power Module (TIPM) so that the system remains operational regardless of the ignition switch position.
