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Home >> Chrysler >> 2007 >> 300 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 60 (Vehicle Theft Security System (Service Information)) >> Sentry Key Remote Entry Module >> Description >> Sentry Key Remote Entry System (SKREES)
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Sentry Key Remote Entry System (SKREES)

WARNING: This page is about a different car, the 2006 Dodge Magnum, 2006 Dodge Charger, and 2006 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.

The Sentry Key Remote Entry System (SKREES), sometimes referred to as the Sentry Key Immobilizer System (SKIS), authenticates an electronically coded Transponder Key placed into the ignition and sends a valid/invalid key message to the Powertrain Control Module (PCM) based upon the results. The "VALID/INVALID KEY" message communication is performed using a rolling code algorithm via the Programmable Controller Area Network (CAN) data bus. A "VALID KEY" message must be sent to the Powertrain Control Module (PCM) within two seconds of ignition ON to free the engine from immobilization.

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