Anti-Theft - Active

Anti-Theft - Active

COMPONENT LOCATION









INTRODUCTION
The active anti-theft system monitors the hinged panels for unauthorized opening. In some markets the anti-theft system also incorporates:
- Monitoring of the vehicle interior and vehicle tilt sensing
- Control of the electric steering column lock (where fitted).
The active anti-theft alarm system is controlled by the following body system control modules:
- CJB (central junction box)
- LH (left-hand) door module
- RH (right-hand) door module
- AJB (auxiliary junction box)
- Keyless vehicle module
- Instrument cluster.
The CJB (central junction box) is the main controller in the system. The CJB (central junction box) controls the following security functions, in addition to other vehicle functions:
- Locking, double locking (where fitted) and unlocking
- Monitoring of hinged panel microswitches and panel ajar states
- Microwave intrusion detection modules (where fitted)
- Passive anti-theft horn or battery backed sounder (market dependant)
- Passive arming and disarming (where enabled)
- Active arming and disarming
- Panic alarm function
- Transceiver coil and transponder reading
- Valet function (via the TSD (touch screen display))
- Interior lighting
- Locking and unlocking of the electric steering column lock (where fitted).
Two alarm modes are available:
- Perimeter mode, which locks and monitors all opening panels
- Volumetric mode, which monitors the vehicle interior for intrusion and incorporates a tilt sensor to monitor if the vehicle is being raised.

Door Modules
The door modules provide the interface between the door latch motors, the door and latch microswitches and the CJB (central junction box). The door modules provide door microswitch switch status information and enable the door motors on request from the CJB (central junction box) or the keyless vehicle module. Additionally, the door modules also control the exterior mirror functions.

Auxiliary Junction Box and Central Junction Box
The AJB (auxiliary junction box) controls, in conjunction with the CJB (central junction box):
- The horns
- The liftgate latch motors and microswitches (including the liftgate external release switch)
- The liftgate ajar switch
- The turn signal indicators
- The fuel filler flap operation.
The AJB (auxiliary junction box) also has a connection to the RCM (restraints control module) for automatic operation of the interior lights and the turn signal indicators in the event of an accident.
The CJB (central junction box) and AJB (auxiliary junction box) are both fitted with an anti-theft sense line. If the AJB (auxiliary junction box) is disconnected when the alarm system is active, the full alarm will be activated by the CJB (central junction box). If the CJB (central junction box) is disconnected when the alarm system is active, the AJB (auxiliary junction box) takes control of the security system and sounds the full alarm.

NOTE:
If the CJB (central junction box) is replaced, the new module will require configuring to the master car configuration using the IDS (Integrated Diagnostic System).
The CJB (central junction box) automatically arms and disarms the active anti-theft system when the vehicle is locked and unlocked after successful confirmation that a valid remote handset/smart key has been used.

Keyless Vehicle Module
The keyless vehicle module interfaces with the CLS (central locking system) RF receiver and collects RF signal information which is transmitted from the smart key. This information is translated into commands which are passed on the medium speed CAN (controller area network) bus to the CJB (central junction box), AJB (auxiliary junction box), the door modules and the instrument cluster.
The keyless vehicle module also monitors the liftgate external release switch, the two interior antennae, the luggage compartment antenna and an additional rear bumper antenna and two door handle antennae if the passive entry system is fitted.
On vehicles with passive entry, the additional fast latch motors are controlled via the keyless vehicle module and the locking status is passed to the CJB (central junction box) on the medium speed CAN (controller area network) bus.

Instrument Cluster
The instrument cluster controls the alarm indicator which is incorporated into the sunload/light sensor mounted on the instrument panel.
The instrument cluster also controls, in conjunction with the ECM (engine control module), the engine immobilization. The ECM (engine control module) controls the engine crank and fuel functions and the instrument cluster processes the valid transponder information.

Alarm Indicator
The alarm indicator is a LED (light emitting diode) located in the body of the sunload/light sensor. When the ignition is off the alarm indicator gives a visual indication of the active anti-theft system status, to show if the alarm system is set or not.
When the ignition is on, the indicator provides a visual indication of the status of the passive anti-theft (engine immobilization) system. If the immobilization system is operating correctly, the LED (light emitting diode) will be illuminated for 3 seconds at ignition on and then extinguish.
If a fault exists in the immobilization system, the LED (light emitting diode) will be either permanently illuminated or flashing for 60 seconds. This indicates that a fault exists and fault code has been recorded. After the 60 second period the LED (light emitting diode) will flash at different frequencies which indicate the nature of the fault. For additional information, refer to Anti-Theft - Active





Operation of the alarm indicator is controlled by the instrument cluster, which varies the flash rate of the LED (light emitting diode) to indicate the status of the alarm and the immobilization systems.

Passive Anti-theft Horn (If Fitted)





The passive anti-theft horn is located in the RH (right-hand) rear corner of the engine compartment and attached to the bulkhead. The passive anti-theft horn is connected directly to the CJB (central junction box) which activates the passive anti-theft horn when the alarm is triggered.

Battery Backed Sounder (If Fitted)





The battery backed sounder is located in the RH (right-hand) rear corner of the engine compartment and attached to the bulkhead.
On vehicles with a battery backed sounder, a tilt sensor can be incorporated which monitors the vehicle attitude. The CJB (central junction box) monitors the tilt sensor and can detect if the vehicle is being moved, towed or raised and activate the alarm system. The type of battery backed sounder can be identified by a suffix change to the part number; sounders without a tilt sensor have the suffix AA and sounders incorporating a tilt sensor have the suffix BA.
Operation of the sounder is controlled by the CJB (central junction box) on a LIN (local interconnect network) bus. The sounder is also connected with a permanent battery supply via the CJB (central junction box). An integral, rechargeable battery powers the sounder if the battery power supply from the CJB (central junction box) is interrupted.

Intrusion Detection Modules





The intrusion detection modules are an optional fitment in some markets and are not available in other markets. Two intrusion detection modules are fitted. One module is located on the front of the floor console and monitors the front seat area, the second module is fitted at the rear of the floor console and monitors the rear seat area. The modules are connected in parallel, with the forward module being the master module and the rearward module being the slave module.
Each intrusion detection module comprises two microwave sensors which allow the interior of the vehicle to be monitored. The intrusion detection modules also monitor the vehicle interior on soft top models when the soft top is down.
The intrusion detection modules are activated by the volumetric mode of vehicle locking, which is selected when the vehicle is double locked. The vehicle can be locked and alarmed without activating the intrusion detection modules, if a pet is to be left in the vehicle for example, by single locking the active anti-theft system. The intrusion detection modules can also be de-activated by deselecting the Intrusion/Tilt option in the Vehicle Settings screen on the TSD.

NOTE:
The TSD method of de-activation of the intrusion detection modules is only for one arming cycle. They will revert to active once the vehicle is subsequently unlocked and then locked.
When the volumetric mode is active, if the vehicle battery voltage falls to less than 9 volts, the CJB (central junction box) will ignore any inputs from the intrusion detection modules to prevent false alarm activation.

CONTROL DIAGRAM

NOTE:
A = Hardwired; D = High speed CAN (controller area network) bus; N = Medium speed CAN (controller area network) bus; O = LIN (local interconnect network) Bus









PRINCIPLES OF OPERATION
The CJB (central junction box) automatically arms and disarms the active anti-theft system when it operates the CLS. The CJB (central junction box) also locks and unlocks the electric steering column lock (where fitted) when it operates the CLS.
On vehicles without intrusion detection modules, only the perimeter mode is available to monitor the hinged panels and the validity of the smart key.
When perimeter mode is active, the CJB (central junction box) monitors panel ajar microswitches located in the latch mechanisms of the driver and passenger doors and the liftgate. A separate hood ajar microswitch, located in the engine compartment, monitors the hood status.
When volumetric mode is active, the CJB (central junction box) monitors the interior of the vehicle for movement using the two intrusion detection modules.

Arming
On vehicles without intrusion detection modules and a tilt sensor, the active anti-theft system is armed in the perimeter mode when the vehicle is either locked or double locked.
On vehicles fitted with intrusion detection modules, the system has two modes of operation; perimeter mode and volumetric mode.

Perimeter Mode
Perimeter mode only monitors the hinged panels and validity of the remote handset/smart key in the start control module. Perimeter mode is activated by a single press of the lock button on either the smart key or the door handle lock button on vehicles with the passive entry system.

Volumetric Mode
Volumetric mode monitors the vehicle interior for intrusion. If the vehicle is fitted with a battery backed sounder which incorporates a tilt sensor, the vehicle attitude is also monitored when volumetric mode is active. Volumetric mode is activated by a second press of the lock button on either the Smart Key or the door handle lock button on vehicles with the passive entry system. The second press of either lock button must occur within 3 seconds of the first press. The second press of the lock button also activates the perimeter mode double locking feature.
The CJB (central junction box) arms the active anti-theft system when it locks or double locks the vehicle providing the following conditions are met:
- All doors, liftgate and hood are closed
- The smart key is not sensed inside the vehicle
- The CJB (central junction box) is not in transit mode.
When the vehicle has successfully completed its locking routine, confirmation will be given by a long single flash of the turn signal indicators to indicate the locked condition. If double locking is activated then confirmation will be given by a double flash of the turn signal indicators, one flash for locked and one long flash for double locked. In certain markets an audible warning is emitted to confirm arming or double locking.

Mislock
If any door, liftgate or hood is open when a lock or double lock request is received, the anti-theft alarm system remains disarmed and the CJB (central junction box) generates a short mislock sound on the battery backed sounder or passive anti-theft horn and the turn signal indicators will not flash. Each attempt to lock will be confirmed by two audible chimes being emitted.
When the CJB (central junction box) arms the active anti-theft alarm system, it first enables perimeter mode and monitors the status of the hinged panels. If the vehicle is double locked and the vehicle is fitted with a battery backed sounder, an arming signal is sent from the CJB (central junction box) to enable the sounder. If the vehicle is fitted with intrusion detection modules, the CJB (central junction box) then sends an arming signal to the modules and the tilt sensor when double locked. The CJB (central junction box) ignores the signals from the intrusion detection modules for the first 30 seconds to allow time for the vehicle interior to settle and prevent false alarm activation.
If the liftgate is opened via the smart key, the intrusion detection modules and the tilt sensor are inhibited until the liftgate is closed.

Disarming
The CJB (central junction box) will disarm the active anti-theft system when it receives an unlock request from the smart key or, on vehicles with passive entry, when the smart key is sensed and the driver or passenger door handles are pulled.
The CJB (central junction box) can selectively disarm parts of the active anti-theft system to prevent false alarm activation under certain conditions as follows:
- When the vehicle active anti-theft alarm system is armed in volumetric mode, if the vehicle battery voltage decreases to less than 9 V, the CJB (central junction box) will disable the volumetric mode and remain in the perimeter mode only. This prevents false alarm activation because the intrusion detection modules do not operate below 9 volts.
- On vehicles fitted with a battery backed sounder, if the vehicle battery voltage decreases from 9.5 to 9 V in more than a 30 minute period, the CJB (central junction box) de-activates the battery backed sounder and if required, will use the vehicle horns to sound an audible alarm trigger warning. This prevents false alarm activation. At voltages below 9 volts, the CJB (central junction box) will not generate the 'heartbeat' signal to the battery backed sounder. If the sounder fails to receive the 'heartbeat' signal, it interprets this as tampering with the CJB (central junction box) and the sounder self activates. If the battery voltage subsequently rises above 9.5 V, the CJB (central junction box) will re-arm the battery backed sounder.
- If the vehicle is unlocked using the unlock button on the smart key and, within 45 seconds, a hinged panel is not opened, the CJB (central junction box) automatically re-locks the vehicle and re-arms the active anti-theft system (if the auto re-lock feature is enabled). This prevents leaving the vehicle unlocked and disarmed by accidental operation of the smart key unlock button.

Alarm
When the alarm is triggered, the CJB (central junction box) activates audible and visual warnings. The audible warning is produced using the vehicles horns, the passive anti-theft horn or the battery backed sounder, or a combination of these devices. The visible indication is produced using the turn signal indicators.
The CJB (central junction box) cycles the warnings on for 30 seconds and off for 5 seconds. At the end of the off period, if the alarm trigger is still present the CJB (central junction box) repeats the warning cycle. The CJB (central junction box) activates a maximum of 10 warning cycles (3 in some markets) for any one arming period. The CJB (central junction box) deactivates the alarm if the maximum number of warning cycles have been completed and the alarm trigger is still present, or if it receives a disarm signal.

NOTE:
If the battery backed sounder is triggered due to tamper detection, the visual indication using the turn signal indicators is not activated.
The alarm can be triggered if any of the hinged panels are opened, an intrusion detection module detects movement inside the vehicle, the tilt sensor detects vehicle movement, the CJB (central junction box) is disconnected or an ignition tamper is detected (invalid smart key).

Battery Backed Sounder
When the CJB (central junction box) arms the active anti-theft system, in either the perimeter mode or the volumetric mode, it sends an arming signal to the battery backed sounder on the LIN (local interconnect network) bus. When the system is armed in the volumetric mode, the CJB (central junction box) also sends an arming signal to the tilt sensor (if fitted).
On receipt of the arming signals, the battery backed sounder and the tilt sensor respond with status signals. If the CJB (central junction box) does not receive the status signals within 12 seconds, it assumes there is a fault and responds with a disarm signal to the battery backed sounder and/or the tilt sensor and stores a related fault code. If the battery backed sounder is disarmed when the active anti-theft system is armed and the system is subsequently triggered, the CJB (central junction box) instructs the AJB (auxiliary junction box) to energize the horn relay and use the vehicle horns to sound the audio warning in place of the battery backed sounder.
When the battery backed sounder is armed, the CJB (central junction box) sends a periodic (heartbeat) signal to the battery backed sounder, which prompts the battery backed sounder to monitor the vehicle battery supply and the LIN (local interconnect network) bus link with the CJB (central junction box). The sounder will operate if:
- It receives an alarm signal from the CJB (central junction box) or the tilt sensor
- The power supply or the LIN (local interconnect network) bus link from the CJB (central junction box) is disrupted.
The tilt sensor measures the longitudinal and lateral angle of the vehicle over a range of ±16° from the horizontal. When the active anti-theft system is armed in the volumetric mode, the tilt sensor stores the current vehicle angles in its memory and monitors the tilt sensor readings. If the vehicle angle changes in either direction by more than the alarm limit, the tilt sensor activates the battery backed sounder.
If the alarm system is active and the battery or battery backed sounder is disconnected, the battery backed sounder will operate, but there will be no visual warning.

Customer Programmable Security Features
A number of security features can be programmed to the customers requirements by use of the TSD.

Global Open/Close
The global open/ close feature allows the driver to fully raise/lower the driver and passenger windows with a single press of a smart key button. The button must be pressed and held for more than 2 seconds. Either or both of the open/close functions can be disabled from the TSD.

NOTE:
Remote global close is not available in all markets.
From the Home screen, select the Vehicle screen and select Veh. Settings. The Security button will be highlighted as the default selection. Scroll the screen until the Global Open and Global Close selections are displayed. Global open and/or global close can be switched on or off by touching the applicable button on the TSD.

Valet Mode
Valet mode allows unlocking of the liftgate to be inhibited. When in valet mode, if either the switch pack or exterior luggage compartment release button is pressed, an audible warning chime is emitted to warn that the liftgate is inhibited.

Enabling Valet Mode
Using the emergency key from the smart key, lock the glovebox. From the Home screen, select the Valet button. The valet mode screen is displayed and requires a four digit PIN (personal identification number) for access. Enter the PIN using the digits on the TSD and press OK. When the PIN is accepted the screen displays Valet On. The glovebox and the liftgate are now locked in valet mode. On leaving the vehicle, only give the attendant the smart key without the emergency key installed.

Disabling Valet Mode
After entering the vehicle, access the valet mode screen, enter the four digit PIN number and touch the OK button. When the PIN is accepted, the screen displays Valet Off. Unlock the glovebox using the emergency key and replace the emergency key in the stowage slot in the smart key.

Single Point Entry
The single point entry feature only unlocks one door, all other panels remain locked.
On vehicles with the remote CLS, a single press of the unlock button on the smart key unlocks only the driver's door. A second press will unlock the passenger door and the liftgate.
On vehicles with the passive entry system, the first door handle which is pulled will only open that door to gain access to the vehicle. The remaining door and the liftgate will revert to central locking. The locked door can be unlocked by operating the interior door release lever and the liftgate can be released using the liftgate release button in the auxiliary lighting switch, the smart key liftgate release button or the exterior liftgate release button.
From the Home screen, select the Vehicle screen and select Veh. Settings. The Security button is highlighted by default. Select 2 stage unlock and touch the on or off button to enable or disable the single point entry feature.
Changing from central locking to single point entry and back again can also be carried out by pressing the lock and unlock buttons on the smart key simultaneously. The turn signal indicators will flash after 4 seconds to confirm that the change has been performed.

Drive Away Locking
The drive away door locking feature locks the doors and the liftgate if they are unlocked when the transmission selector lever is not in P and the vehicle speed is more than 7 km/h (5 mph).
From the Home screen, select the Vehicle screen and select Veh. Settings. The Security button is highlighted by default. Scroll the screen until the Drive away locking section is displayed. Select the drive away locking feature on or off by touching the applicable button on the TSD.

Smart Key Additional Features
The smart key has convenience buttons in addition to the lock/unlock buttons.

Panic alarm
A panic alarm feature allows the vehicle alarm system to be activated using the smart key. The panic button, identified by a triangle symbol, can be pressed three times or pressed and held for more than 3 seconds to activate the panic alarm.
To cancel the panic alarm feature, press the panic button three times, press and hold the panic button for three seconds or press the start/stop button. To prevent accidental cancellation, the panic alarm cannot be cancelled within 5 seconds of being activated.

Global Open/Close
A global open and close feature can be operated from the smart key. This feature allows the vehicle windows to be opened/closed by a single press of the lock or unlock button. The button must be pressed and held for more than 2 seconds to activate the global open/close feature.

NOTE:
Remote global close is not available in all markets.

Liftgate Release
A liftgate release button can be pressed to open the liftgate. This will operate with the car locked and alarmed or unlocked. If the vehicle is locked and alarmed, when the liftgate release button is pressed, the liftgate can be opened without triggering the alarm system. When the liftgate is subsequently closed, the alarm will be re-activated.

Headlamp Convenience
A headlamp convenience button can be pressed to operate the headlamp to assist departure or approach to the vehicle. A single press of the button will operate the headlamps for approximately 25 seconds, after which they automatically go off. A second press of the button will turn off the headlamps if the 25 second period has not been reached. Pressing the Stop/Start button within the 25 second period will also turn off the headlamp convenience feature.

Convenience Mode
When a door is opened, for a vehicle with either remote RF central locking or passive entry, the vehicle's electrical system initiates the convenience mode. The following systems become active:
- Memory - seat and steering column adjustment
- Interior and exterior lighting
- TSD and audio
- Instrument cluster message center
- Horn
- Cigar lighter and power socket.