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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 476 (Vehicle Theft Security (Service Information)) >> Module, Sentry Key Immobilizer (SKREEM) >> Description >> Description >> Sentry Key Remote Entry System

Sentry Key Remote Entry System

WARNING: This page is about a different car, the 2013 Dodge Avenger and 2013 Chrysler 200. 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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