Section 30 (Vehicle Theft Security System (Service Information)): Description: Description: Notes

WARNING: This page is about a different car, the 2009 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Vehicle Theft Security System

Courtesy of CHRYSLER LLC

The Vehicle Theft Security System (VTSS) is an available factory-installed feature on this vehicle. The VTSS is comprised of two primary subsystems: the optional Vehicle Theft Alarm (VTA) and the standard Sentry Key Immobilizer System (SKIS). The VTA is an active system that provides visual and audible responses as deterrents to and warnings of unauthorized vehicle tampering. The SKIS is a passive system that effectively immobilizes the vehicle against unauthorized operation. Following are paragraphs which describe the various components that are included in each of these subsystems of the VTSS.

Certain functions and features of the VTSS rely upon resources shared with or controlled by other electronic modules in the vehicle over the Controller Area Network (CAN) data bus. Other modules that may affect VTSS operation are:

ElectroMechanical Instrument Cluster - The ElectroMechanical Instrument Cluster (EMIC) (also known as the Cab Compartment Node/CCN) provides security indicator control. Refer to Electrical - Instrument Cluster/Instrument Cluster - Description .
Powertrain Control Module - The Powertrain Control Module (PCM) provides the SKIS engine control logic.
Totally Integrated Power Module (3) - The Totally Integrated Power Module (TIPM) is located in the engine compartment, near the battery. The TIPM monitors door, liftgate and hood ajar switch status and provides the VTA system logic. Refer to Electrical - Wiring/Power Distribution/MODULE, Totally Integrated Power (TIPM) - Description .

Except for the Sentry Key transponders, which rely upon Radio Frequency (RF) communication, hard wired circuitry connects the VTA and SKIS components to the electrical system of the vehicle. These hard wired circuits are integral to several wire harnesses, which are routed throughout the vehicle and retained by many different methods. These circuits may be connected to each other, to the vehicle electrical system and to the SKIS components through the use of a combination of soldered splices, splice block connectors, and many different types of wire harness terminal connectors and insulators. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, further details on wire harness routing and retention, as well as pin-out and location views for the various wire harness connectors, splices and grounds.