When the ignition switch is moved to the RUN Learns through a bus message from the assembly plant tester. The SKIS scrambles the information that is communicated between its components in order to reduce the possibility of unauthorized SKIM access and/or disabling. Key replacement is necessary. Another security code, called a PIN, is used to gain secured access to the SKIM for service. The SKIM also stores in its mem- ory the Vehicle Identification Number (VIN), which it Not be recovered, new ignition keys will be required. Task will allow the existing ignition keys to be repro- grammed. Therefore, new keys will NOT be needed. Is stored in memory and is sent over the PCI bus to the PCM and to each key that is programmed to work with the vehicle. Theįore a common element found in all components of the Sentry Key Immobilizer System (SKIS). In the event that a SKIM replacement is required, the 9Secret Key9 code can be restored from the PCM by following the SKIM replacement procedure found in the DRB III The maximum number of keys that may be pro- grammed to each module is eight (8). The SKIM also communicates over the Programmable Communica- tion Interface (PCI) data bus with the Powertrain Control Module (PCM), the Body Control Module (BCM), the Mechanical Instrument Cluster (MIC), and the DRB IIIĮnclosed within a molded plastic ring formation that is integral to the SKIM housing. When the SKIM is properlyĪntenna ring fits snugly around the circumference of the ignition lock cylinder housing. If this ring is not mountedĪrise in the form of transponder-related faults.įor added system security, each SKIM is pro. Tains a Radio Frequency (RF) transceiver and a microprocessor. The SKIM retains in memory the ID numbers of any Sentry Key that is programmed to it. The Sentry Key Immobilizer Module (SKIM) con. Vehicle identification number (VIN) into PCM. Refer to the DRBIII (2) Install electrical connectors and lock. (1) Install PCM module to the mounting bracket. Refer to the appropriate Powertrain Diagnostic Man- ual and the DRBIII

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