419-01A-4
Anti-Theft - Active
419-01A-4
DESCRIPTION AND OPERATION
Stretch cab
1
2
3
6
5
E138339
Item
Description
1
Body control module
2
Intrusion sensor(s)
3
Direction indicator(s)
4
Door latch(s)
5
Anti-theft alarm horn
6
Hood latch
System operation
Operation
Two anti-theft alarm systems are available,
depending on the market and model version:
Perimeter and interior monitoring.
Perimeter fitted with battery back-up sounder
and interior monitoring
NOTE: If a window is not closed, there is the risk
that a false alarm may be triggered on vehicles
with interior monitoring.
3
4
3
The anti-theft alarm system outputs an acoustic
and visual signal if unauthorised persons attempt
to gain access to the vehicle.
As a visual warning, the system switches on the
hazard flashers, whilst the acoustic warning is
performed via the anti-theft alarm system horn (with
or without battery back-up sounder).
The anti-theft alarm system is activated after the
vehicle is locked, provided the hood and all the
doors are fully closed.
If the hood or one of the doors is not completely
closed, it can be opened without the alarm being
triggered since the system is not activated for this
entry point.
The anti-theft alarm system can be switched off by
unlocking the vehicle using the remote controls or
by unlocking the door with the key and inserting
the correctly coded key into the ignition switch
within 12 seconds.
419-01A-5
Anti-Theft - Active
419-01A-5
DESCRIPTION AND OPERATION
Component description
Intrusion sensors
E140259
The interior monitoring is an additional security
system that triggers the alarm if any movement
inside the locked vehicle is detected.
The transceivers work ultrasonically. The
transmitter sends at a specific frequency into the
monitoring area. The receiver receives the
corresponding echo signal. Here, the signals are
converted into digital values and the previously
sent values are compared with the signals
received. If there are significant differences
between the two, a trigger signal is sent to the
BCM.
As the period during which no movement is
detected increases, so the sensitivity of the sensors
increases.
Anti-theft alarm horn with integrated battery
E130289
This horn has its own voltage supply from an
integrated battery.
This ensures that the alarm horn will still be
powered even if the vehicle battery has been
disconnected.
419-01A-6
Anti-Theft - Active
419-01A-6
REMOVAL AND INSTALLATION
Anti-Theft Alarm Horn
Removal
NOTE: Removal steps in this procedure may
contain installation details.
E127885
4. Torque: 8 Nm
E128350
Installation
1. To install, reverse the removal procedure.
1. Refer to: Battery Disconnect and Connect
(414-01 Battery, Mounting and Cables,
General Procedures).
2. Refer to: Lifting (100-02 Jacking and Lifting,
Description and Operation).
3.
x19
419-01A-7
Anti-Theft - Active
419-01A-7
REMOVAL AND INSTALLATION
Anti-Theft Alarm Horn with Integral Battery
Removal
NOTE: Removal steps in this procedure may
contain installation details.
E127885
4. Torque: 8 Nm
x2
E128351
Installation
1. To install, reverse the removal procedure.
1. Refer to: Battery Disconnect and Connect
(414-01 Battery, Mounting and Cables,
General Procedures).
2. Refer to: Lifting (100-02 Jacking and Lifting,
Description and Operation).
3.
x19
419-01A-8
Anti-Theft - Active
419-01A-8
REMOVAL AND INSTALLATION
Intrusion Sensor
Removal
NOTE: Removal steps in this procedure may
contain installation details.
1. Refer to: Battery Disconnect and Connect
(414-01 Battery, Mounting and Cables,
General Procedures).
2.
E135037
Installation
1. To install, reverse the removal procedure.