Vehicle Theft Security System: Notes

Fig 1: Location Of Vehicle Theft Security System Components

Courtesy of CHRYSLER LLC

The Vehicle Theft Security System (VTSS) is an available factory-installed option on this vehicle. The VTSS is comprised of two primary subsystems: Vehicle Theft Alarm (VTA) and 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 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:

1. Driver Memory Mirror Module  - The Driver Memory Mirror Module (DMMM) provides driver front door ajar switch and power lock switch status. Refer to DESCRIPTION .
2. Electromechanical Instrument Cluster  - The Electromechanical Instrument Cluster (EMIC) (also known as the Cab Compartment Node/CCN) provides driver and passenger rear door, liftgate and flip-up glass ajar switch status as well as flip-up glass release switch status. The EMIC also provides the VTA system logic and security indicator control. Refer to DESCRIPTION .
3. Front Control Module  - The Front Control Module (FCM) provides hood ajar switch status as well as exterior lighting system and horn system control. Refer to DESCRIPTION .
4. Passenger Memory Mirror Module  - The Passenger Memory Mirror Module (PMMM) provides passenger front door ajar switch and power lock switch status. Refer to DESCRIPTION .
5. Powertrain Control Module  - The Powertrain Control Module (PCM) provides the SKIS engine control logic. Refer to DESCRIPTION .
6. Steering Control Module  - The Steering Control Module (SCM) provides ignition switch status. Refer to 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.