Description

DESCRIPTION





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:

- Driver Memory Mirror Module - The Driver Memory Mirror Module (DMMM) provides driver front door ajar switch and power lock switch status.
- 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.

- Front Control Module - The Front Control Module (FCM) provides hood ajar switch status as well as exterior lighting system and horn system control.
- Passenger Memory Mirror Module - The Passenger Memory Mirror Module (PMMM) provides passenger front door ajar switch and power lock switch status.
- Powertrain Control Module - The Powertrain Control Module (PCM) provides the SKIS engine control logic.
- Steering Control Module - The Steering Control Module (SCM) provides ignition switch status.

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.

VEHICLE THEFT ALARM

The VTA is available in two different configurations for this vehicle: One configuration is designed for vehicles manufactured for sale in North America; while, the other configuration is designed for vehicles manufactured for sale in markets outside of North America, also referred to as export markets within the context of this service information. In addition, the VTA for export is available in two versions: base and premium. All vehicles equipped with VTA are also equipped with the Remote Keyless Entry (RKE) system and the Sentry Key Immobilizer System (SKIS), regardless of their market destination.

The North American and export base version of the VTA system provide perimeter vehicle protection by monitoring the vehicle doors, the ignition switch, the liftgate, the liftgate flip-up glass and, for vehicles built for certain markets where it is required equipment, the hood. If unauthorized vehicle use or tampering is detected, these systems respond by pulsing the vehicle horn as an audible deterrent and flashing certain exterior lamps as a visual deterrent.

The export premium version of the VTA system is only available in vehicles manufactured for sale in certain markets where it is required equipment. The export premium version of the VTA provides the same perimeter protection features as the base version, but adds interior vehicle intrusion protection. The export premium VTA also replaces the pulsing horn feature of the base version with an alarm siren as the audible deterrent, while retaining the flashing exterior lamps as the visual deterrent.

The VTA includes the following major components, which are described in further detail:

- Door Ajar Switches (8) - A door ajar switch is integral to the door latch mechanism of each front and rear door.
- Flip-Up Glass Ajar Switch (11) - A flip-up glass ajar switch is integral to the liftgate flip-up glass latch, located on the liftgate below the glass opening near the center.
- Hood Ajar Switch (2) - A hood ajar switch is located in a bracket on the left inner fender side shield of vehicles built for sale in certain export markets where it is required equipment.
- Intrusion Module (9) - An intrusion module is located in a cavity on the right side of the intermediate step assembly under the right outboard second row seat cushion in the passenger compartment of vehicles built for sale in certain export markets where it is required equipment.
- Intrusion Sensor Receiver (6) - An intrusion sensor receiver is located in a bracket on the left rear corner of the overhead console above the headliner in the passenger compartment of vehicles built for sale in certain export markets where it is required equipment.
- Intrusion Sensor Transmitter (7) - An intrusion sensor transmitter is located in a bracket behind the left rear corner of the headliner in the passenger compartment of vehicles built for sale in certain export markets where it is required equipment.
- Liftgate Ajar Switch (10) - A liftgate ajar switch is integral to the latch for the liftgate in the vehicle.
- Security Indicator (4) - A security indicator is integral to the ElectroMechanical Instrument Cluster (EMIC) (also known as the Cab Compartment Node/CCN).
- Siren (1) - An alarm siren is located in a hollow behind the right end of the front frame crossmember outboard of the right front frame rail. A single screw secures the mounting bracket to the right end of the front crossmember of vehicles built for sale in certain export markets where it is required equipment.

SENTRY KEY IMMOBILIZER SYSTEM

The Sentry Key Immobilizer System (SKIS) is available as a factory-installed option on this vehicle. Vehicles equipped with the Vehicle Theft Alarm (VTA) are also equipped with SKIS. The SKIS provides passive vehicle protection by preventing the engine from operating unless a valid electronically encoded key is detected in the ignition lock cylinder. The SKIS used in combination with the export premium version of the VTA adds a steering shaft lock feature that provides passive protection by preventing the vehicle from being steered unless a valid electronically encoded key is detected in the ignition lock cylinder, but is only available in vehicles manufactured for sale in certain markets where it is required equipment.

The SKIS includes the following major components, which are described in further detail:

- Security Indicator (4) - A security indicator is integral to the ElectroMechanical Instrument Cluster (EMIC) (also known as the Cab Compartment Node/CCN).
- Sentry Key Remote Entry Module (5) - The Sentry Key REmote Entry Module (SKREEM) (also known as the Wireless Control Module/WCM) is located on the instrument panel to the right side of the steering column near the ignition lock cylinder housing and an integral molded plastic antenna ring circles the ignition lock cylinder like a halo. The SKREEM and its antenna are concealed beneath an ignition switch bezel on the instrument panel.
- Sentry Key Transponder - The Sentry Key transponder is contained within the Remote Keyless Entry (RKE) transmitter integral to the head of the ignition key.
- Shaft Lock Module (3) - A shaft lock module is located in a bracket integral to the lower end of the steering column casting below the instrument panel in the passenger compartment of vehicles built for sale in certain export markets where it is required equipment.