Sheriff car alarm: model descriptions and instructions

A car alarm is the same as 24/7 surveillance of your home.
This is a necessity, not a mere precaution. Depending on the manufacturer of the security equipment installed on your car, the degree of security of the vehicle also depends. When choosing, it is calculated how functional the security system is during operation, what additional options it has, and how useful they are. A Sheriff car alarm selected taking into account the characteristics of the car and possible risks is a guarantee of reliable protection.

Sheriff car alarm: model descriptions and instructions

Sheriff car alarms (the term “security systems” is of little use to them by modern standards) is a classic example of budget devices in the lower price segment, which are purchased solely on the principle “so that the doors open and the LED blinks, maybe they won’t get in”).
Frankly outdated models continue to be supplied under this brand: for example, the Sheriff APS-2500 alarm system still uses the Keeloq algorithm, which did not protect against code grabbers even ten years ago. In more “fresh” and complex systems, instead of real technical improvement, cheap marketing tricks are used, misleading the average buyer. As an example, the instructions for the “Sheriff ZX-1090 PRO” alarm system indicate the use of a certain DISARM DIALOG code in it. From the buyer's point of view, it is logical to assume that we are talking about dialog code, which is now considered to be maximally protected from intellectual hacking. In fact, the dialogue code (of dubious complexity) is used here only in the main key fob: for normal use of the entire set it has to be turned off (!), otherwise the additional key fob will not disarm the car.

It is impossible to talk about a full-fledged dialogue code at the level of StarLine systems (in the design of Sheriff key fobs there is obvious mimicry with the second generation StarLine systems) or Pandora.

Only the latest Sheriff models like the ZX-1095, which provide for working with a CAN bus and validating a transponder tag, can be called more or less meeting modern requirements. However, it is still equipped with an additional key fob without dialog code support, and to fully use both key fobs you have to switch to a primitive dynamic code. Thus, Sheriff cannot provide any significant competition in the middle price range, and in fact, the main sales of this brand fall on the most budget lines.

Peculiarities

How to connect an alarm with feedback and auto start to a car, how to set up the start, how to turn off the device and what is the best way to install it? First, let's look at the features of the system. The Sheriff car alarm is produced by Progressive Innovative Technology from the USA. As a result of numerous tests, the alarms of this brand have shown their effectiveness and functionality. Initially, the Sheriff car alarm was conceived as a budget anti-theft system.

• availability of two-way communication on almost all modern models;
• car alarm allows you to control the central locking remotely, locking the car doors;
• work with the satellite module;
• the car owner can set and disable the security system, while relying on the readings of the key fob;
• active and passive modes for installing a car on protection;
• if the Sheriff car alarm has an automatic start function, then the driver will be able to start and block the engine from a distance;
• The kit includes a shock controller with an alert function;
• the ability to recognize the owner of the vehicle at a distance when approaching the car;
• reliable protection against signal interception and scanning, which greatly increases the safety of the machine;
• the ability to set a security mode on the car even if the engine is running;
• the possibility of motion recognition, as well as wiretapping of the vehicle interior with further notification to the car owner (the author of the video is the Avtozvuk.ua channel - Avtozvuk Database).

These functions are typical for almost all signaling models.

A little about choosing an alarm manufacturer

The most popular and effective car security equipment today is considered to be a car alarm from the well-known manufacturer Sheriff. The system is connected by specialists; you can try to install it yourself; the instructions will help you with this. In addition, the millet kit is in operation and maintenance.

The quality of workmanship speaks for itself, but the alarm system of this level also differs in the following parameters:

• window/door locking function;
• the presence of a special satellite module;
• audio wiretapping of the cabin;
• possibility of instant blocking of the engine.

These parameters significantly increase the level of security of the car. The Sheriff car alarm will allow you to detect your car if it is stolen, as well as prevent this fact. The detailed instructions that come with the anti-theft system will tell you in detail about all its features and installation methods.

Types and models

Briefly about the most popular alarm models:

1. ZA-1095. It is characterized by the presence of four service channels, as well as additional protection against theft. There is an option to autostart the power unit.
2. APS-2500. Equipped with a two-level shock controller, it is possible to activate security when the engine is running. A distinctive feature is that this model has its own charger.
3. ZX-945. It is characterized by the presence of a dynamic signal coding system, as well as the Disarm Dialog option.
4. ZX-750. Large range of up to 2 km, of course, if we are talking about clear areas.
5. APS-2400. This model is characterized by the presence of one-way communication, but this does not make it less reliable and functional. The presence of a dynamic encryption code, which allows you to reliably protect the system from signal interception.
6. APS 35PRO. Complete “stuffing” - autostart, the ability to remotely control using a remote control, the presence of a two-channel receiver, a two-level shock controller, etc.
7. ZX-1055. This system belongs to the multifunctional category. A device with 5 communication channels, as well as advanced protection against vehicle theft. If the car is hacked, the engine will be blocked (video author - Andrey Tarakanov).

How are Sheriff car alarm components connected?

Installation of the complex begins with choosing the location of the main control unit. As a rule, it is installed in a hidden place (for example, behind the glove compartment or under the heating or ventilation control unit). Using the screws included in the kit, fastening is carried out in the indicated place.

It is better to install the siren in the engine compartment so that moisture does not get on it, and it is also invisible.

The limit switch is mounted on a metal surface. It is important to remember that the limit mechanism rod moves approximately 6 mm when closing/opening the hood. It is better to place the shock sensor on a hard surface on the interior side. The LED element is usually placed on the front panel so that it is visible.

All connecting wires are connected from the ignition switch with a voltage of 12 V. When connecting, polarity must be observed. The instructions included with the equipment contain a detailed description of the procedure for connecting connecting cable lines (by color). Also included is a general wiring diagram for the Sheriff alarm system for the car.

The final stage of installation work is to stretch the antenna wire to its entire length and secure it with fastening ties.

Connecting an alarm system to the central locking - the main difficulties of the procedure

Nowadays, motorists have the opportunity to choose any type of security system for their vehicle, focusing on their own needs and wishes.

But choosing the “best” alarm system is half the battle. It still needs to be properly mounted and connected to the central locking.

Specific connection points for the security device are selected depending on the following factors:

• type of alarm system purchased (without remote control or with one);
• model of the vehicle on which the system is planned to be installed;
• location of the main security mechanism (block).

You can determine the connection points for an alarm with automatic start using the passport of the purchased device, a lamp probe or a voltmeter . In addition, you will need a vehicle wiring diagram. It is with its help that you can find the elements to which the alarm will be connected.

Before starting work, you need to decide on the type of central locking (CL) of your car. The most common types of central locks are:

• driven by positive impulse;
• controlled by negative impulse;
• with variable polarity.

Possible faults

Despite the reliability of the Sheriff alarm system, its elements can fail.

The following problems are possible:

• sometimes the security system with feedback does not catch the signal from the key fob, or it is possible to catch it only the second, and sometimes even the third time;
• problems arise due to the high sensitivity of the sensors;
• In order for the key fob to work, you have to press the button hard;
• During arming, the windows are not blocked or the locks do not close completely; you have to close them yourself.

If problems with the alarm are identified immediately after purchasing and installing it on the car, you should return it to the seller or exchange it for a working one. In case of serious problems after prolonged use, it is better to contact a specialist.

Car control key fob

Car alarm models

The most popular models are:

1. APS-2500 - comes with a shock controller and the ability to arm with the engine on and a separate charger.
2. ZX-750 - the model has a large range of action - up to 2 km in open areas.
3. ZA-1095 - the alarm is equipped with 4 service channels, a remote engine start function and improved theft protection.
4. ZX945 - dynamic signal protection against interception.
5. APS-2400 - one-way communication with the control unit, but this does not make this model less secure.
6. ZX-1055 - belongs to the multifunctional category with an increased number of communication channels and improved protection against theft. If hacked, the car's engine will be blocked.
7. APS-35PRO - includes all available functions from the manufacturer: two-channel communication, remote control, shock controller and others.

The alarm must be used correctly

Alarm units belonging to the Sheriff brand and equipped with auto start have a gearbox selection loop. It is easy to notice that the statement is not true for all devices of the family in question - sometimes software settings are used. In a car with a manual transmission, the owner must perform certain actions, and only then will autostart be allowed. All connections, moreover, are made according to the basic diagram, which is true for any car.

We hope everything is clear here.

Review of types of car alarms SHERIFF

SHERIFF car alarms are produced by the American company Audiovox, which deals with automotive electronics. The manufacturing company has achieved great success during its existence and has become a leader in the world market. Among other automotive electronics, SHERIFF anti-theft automotive equipment is quite well known, which has a lot of modifications and series.

Pictured is a Sheriff car alarm

Characteristics

SHERIFF car alarm has an affordable price and has a diverse number of functions, thanks to which this brand has gained great popularity among car owners. The basis of this security equipment is the dynamic Keelog code, which protects the alarm system from hacking through a built-in anti-scanning system. In addition, the security system has a number of advantages:

• Sound alarm of different tones;
• The presence of a sensitive shock sensor with an alert function;
• The ability to arm the car in active or passive mode;
• Ability to control central locking and door locks from a distance;
• Two-way dialogue communication;
• Availability of multifunctional key fobs.

Central locking device

The central lock consists of:

Central locking control unit

The central locking control unit is the electronic brain center of the entire system. Blocks can vary in complexity, from very simple to microprocessor-based and very complex. As a rule, the entire electronic part is placed in one housing with connectors, but with the advent of the CAN bus in modern cars, the control part can be divided into separate blocks scattered in different parts of the car.

The control unit monitors the state of door limit switches (limit switches), contact groups of door locks, the position of the lock control buttons and other sensors. All sensors are connected to the block by wires through which they report their status and changes to the block, and it reacts to changes in incoming signals by controlling electric drives (actuators) through wires that lock or unlock the doors, trunk and gas tank hatch of the car.

In some cases, the Central Unit can also control the car’s turn signals, flashing them when closing and opening doors. If this option is present, then you can connect an alarm to these wires to control the car's turning lights.

The control unit may also have a built-in receiver for remote control of the central locking system. This receiver can be located either inside or separately from the control unit and is connected to the unit with wires that can be used to connect the central locking alarm control.

I would like to note: If you find a unit in a car and it can do a lot, then we connect 80% of the alarm wires to it and all that remains is the siren and engine blocking! Well, also alarm sensors.

Input sensors and buttons

input sensors in the system are:

• door limit switches, they determine whether the door is closed in relation to the car body. The light in the cabin directly depends on the state of these limit switches and of course we connect them to the alarm system to protect the doors.
• microswitches in the lock design, they determine where the key in the door lock is turned and, depending on this, tells the unit to lock or unlock the doors. (Can be used to connect alarm)
• microswitch in the electric drive of the lock - it determines the current position (locked or unlocked), and is also used to control the central locking.
• The button used is a three-pin (with a common and two normally open contacts) two-way button; there are also two-pin or five-pin central locking control buttons. There may be one such button in a car on the driver's door or on the panel, or two on the left and right front doors. By pressing the button in one direction or the other, we let the control unit understand whether to lock or unlock the doors. The wires of these buttons can also be used to connect an alarm system. It should be noted that there may not be buttons.

Actuators (actuators)

Central locking actuators are mainly used electromechanical (hereinafter referred to as Electric Drive), but in the case of a pneumatic system, the actuators operate using air pressure (hereinafter referred to as Pneumatic Drive).

Contents of delivery

Operating and configuration instructions, as well as the user manual (we recommend reading carefully).

Key fob with two-way communication channel and TFT screen.

• Set of communication cables.
• Spare keychain.
• Siren (installed optionally).
• Main block.
• Hood or trunk button.
• Antenna module equipped with LED indicator.
• Service key "Valet"
• Dual zone shock sensor.