Why it doesn’t work and how to disable or unlock the Alligator car alarm

In this article we will talk about typical malfunctions of Alligator remote controls - we will note the features of self-diagnosis and ways to eliminate them.

A common problem is that the Alligator alarm does not respond to the key fob. Probable reasons.

1. The battery is dead - a common problem. Pay attention to the capacity indicator; if it is at a minimum, replace the battery. In key fobs with one-way communication, the cause can be identified with a multimeter.
2. The alarm remote control is damaged - such a malfunction often appears gradually. Usually the rubber bands of the buttons wear out, and sometimes the main elements of the key fob are damaged due to mechanical injury. The problem is solved by replacing it.
3. Failure in memory and settings - sometimes the alarm “forgets” the remote control and does not respond to it. Try re-registering all the units using the “Jack” button.
4. Incorrect installation of alarm elements - some of the controllers are installed deep in the machine, so the signal does not pass through. If there is no reception, try unlocking the car from different positions.

Find out everything about programming the KGB alarm key fob.

Reasons for failure and solution to the problem

The reasons why the Alligator, Jaguar, Panther or other alarm with or without feedback stopped responding may not be related to a malfunction of the pager. But usually the problem is caused by the operation of the communicator.

Dead batteries in the key fob

If the car alarm for Tomahawk, Mongoose, APS or Starline A91 does not respond and has stopped responding to any signals, you must first diagnose the batteries in the key. The problem may be related to their discharge or displacement at the installation site. A decrease in charge is usually accompanied by a decrease in the range of the communicator, as well as dimming of the LED indicator and display.

Troubleshooting involves replacing the power supply; this requires disassembling the communicator body and gently tapping it on a hard surface. The battery must fall out of its seat, after which a new battery is installed in it. If the problem was with the battery, then after replacing it the device will work when you press the buttons.

Remote control does not open the car

The Alligator key fob with two-way communication monitors the status of the main security systems and displays information on the display. Some models are equipped with an autostart function. Characteristics of such keychains.

1. A-9 – autostart system. The buttons are located on the back of the display. The key fob has a high degree of protection (8192 channels), the response time is a quarter of a second. Data about previous violations and power outages remain in memory.
2. C-2 – remote control buttons are conveniently located under the display. The key fob is protected from hacking by a reliable BACS code; in the event of an attempted theft, the Anti-Highjack option allows you to stop the engine in a timely manner.
3. C-2 C – provides two-stage arming. When hacking or sensors are triggered, information is displayed on the display by flashing icons.
4. C-3 C – key fob with two-way communication, allows you to start the engine at a distance of up to 1.2 km. The remote control has a convenient body without an antenna.
5. C-5 is a model with a metal frame, two main buttons are located under the display, three on the side. On the monitor, the data is displayed in a creeping line, there is a Russified menu. Improved radio signal reception up to 2.5 km.

If the key fob stops working, you can carry out diagnostics yourself. The table below provides basic information on faults and how to resolve them.

Key fob diagnostics

If the described actions did not help and the alarm key fob does not work, then to determine the causes of the malfunction you will have to disassemble it. The procedure requires the use of a soldering iron with consumables, a tester and an oscilloscope.

1. The pager case must be opened and a visual diagnosis of the board and its main components must be performed for damage and cracks. The reason may be poor-quality soldering of the elements.
2. If there are traces of dirt and dust on the board, they must be removed using a regular construction or drawing brush. It is not recommended to treat the board with an alcohol solution or solvents, since this may damage the capacitor devices.
3. If the diagnostics showed disconnection of the contact elements, they must be carefully soldered back. For soldering, a soldering iron with a thin tip should be used. During the process, you need to be careful not to let tin get on other elements of the board.
4. The voltage parameter on conductors and other components is checked using a multimeter. You need to make sure that the buttons and the LED light are in working condition.

Alexey Tretyakov showed how the procedure for checking the communicator and measuring the current consumption of the device is performed.

Using the tester, you need to diagnose the battery power consumption when you click on the buttons; the operating parameter should be no more than 10% of the total battery charge. When disassembling the device body, it is necessary to diagnose it for activation and response of the anti-theft complex when the keys are clicked.

If there is no connection between the key fob and the system, diagnostics of the capacitor tuning device is performed.

Using a dielectric screwdriver, this element can be rotated by pressing the button and the setting mode is activated. If, after turning the device 10 degrees, you do not notice the synchronization of the complex with the communicator, then the procedure is repeated. It is necessary to carry out the task only if you have skills in the field of electronics and electrical engineering. Otherwise, this may lead to breakdown of the anti-theft system.

Alligator pager with one-way communication does not work

The Alligator two-button alarm key fob is equipped with a minimum of functions and is usually used as a spare unit. Some pagers may have additional keys. With its help you can open the car and arm it. Popular models.

1. A-LIGHT – on the case there are two main buttons and auxiliary keys located vertically. The pager allows you to set the silent mode and block the engine.
2. M 2200 – equipped with three buttons. The body is small, elongated, ergonomic in shape.
3. NS-505 is a three-button pager, all keys are located in the center. Powered by the Keeloq encryption system.
4. A-1 S is a standard three-key switch. A budget option with a classic set of features.
5. A-2 S – outwardly no different from the previous one, equipped with options that the first one does not have. Works at a distance of 50 meters.
6. A-3 S – the third generation is the most advanced of the budget series. There is an anti-theft function called Anti-Hijack, and there is a dynamic anti-hacking code.

Sometimes it happens that the second key fob fails - possible culprits are listed in the table.

What to do if the alarm does not respond to signals?

There are two options for what the user should do if the signaling system fails:

1. To perform an emergency shutdown of the protection mode, use the Valet or Override button, as well as a personal password. The code is provided to the consumer along with the alarm; the button is mounted in a hidden place inside the car and is often disguised as a harness with standard wiring. To enter a password, press the key sequentially when the ignition is turned off or activated. Depending on the model of the complex, standard regulators on the center console can be used for emergency shutdown.
2. You can increase the efficiency of activating the signal. This method is simple but effective. The car doors are opened with a key, and the control panel must be brought as close as possible to the antenna module or processor unit. The siren mute key is clicked quickly several times.

Both described options for deactivating the alarm are considered emergency; we do not recommend using them constantly.

How to disable autorun?

To disable the remote timer start option, do the following:

1. Start the power unit remotely; to do this, simultaneously hold down the keys in the form of a crossed out speaker and in the form of a snowflake (or with the inscription AUX). Press these buttons for three seconds. The siren should play one signal, the lights in the car will blink twice.
2. Over the next five seconds after playing the signals, click on the third key of the pager (made in the form of a crossed out speaker). The siren should play three signals.
3. Then, for another five seconds, turn off the power unit. To do this, hold down the keys in the form of a crossed out speaker and a snowflake for three seconds. The car's lights will blink three times, this indicates that the timer option has been successfully disabled.

The Business from Scratch channel talked about disabling the timer option on the Alligator alarm system.

You can disable the option by activating the ignition. With such systems, the function is disabled automatically. In a similar way, the function is disabled based on temperature or voltage in the machine’s on-board network.

Video “Repair your communicator yourself”

The AUTO REZ channel provided detailed instructions for repairing the anti-theft complex control pager.

Having a car is not only happiness and responsibility, but also periodic surprises. Among them, one often encounters this: we press the button on the alarm key fob, but there is no response in response. In most cases, this happens unexpectedly and at the most inopportune moment, when you are rushing to a meeting or leaving the store loaded with bags. The original car greets you with an impregnable fortress: the alarm does not turn off and the central lock does not open. Why does this happen and what to do? Sometimes the solution can be very simple.

The problem is in the key fob

If the alarm does not respond to the key fob, then it is logical to suspect it of the trouble that has arisen. This fragile miniature thing seems much more vulnerable than the control unit installed in the car. This postulate is confirmed by practice. The alarm key fob fails for the following reasons:

1. The battery is dead . No matter how trivial it may sound, most car enthusiasts forget that the key fob runs on a battery and it needs to be changed periodically. Typically, the battery discharges gradually. This is expressed in a reduction in its range of action, but in the everyday bustle you may not notice this and get an unpleasant surprise.

First aid: Remove the battery and tap it on a hard surface, then return it to its place. Sometimes this helps activate the remaining resource, which is enough to disarm the car from the alarm system.

Solution: It is recommended to disassemble the key fob at your leisure, familiarize yourself with the type of battery used, purchase it and keep it in your glove compartment, wallet or somewhere handy. Then, at the right time, it will be enough to replace the battery to restore the operation of the control panel.

You can be proactive. It is mandatory to replace the battery every 6-9 months. If there is a screen or LED that reflects the battery charge status, then it is enough to monitor the status and promptly replace the discharged battery.

2. The electrolyte has spread . This problem occurs when using low-quality batteries. It happens suddenly. In some cases, the keychain cannot be brought back to life, but it’s worth a try.

Solution: The key fob is disassembled, washed and dried, and treated with alcohol. Do not use aggressive substances such as acetone. They will definitely lead to the fact that you will have to say goodbye to your electronic device.

3. Liquid ingress . A key fob that falls into an autumn-winter puddle may become damaged. If simple water is not harmful to the control panel, then salt and chemical reagents can paralyze its operation.

Solution: If a questionable liquid gets in, the key fob must be disassembled and cleaned with alcohol. A soft, thin brush will make the cleaning process easier, and a regular hairdryer will speed up drying. If the control panel is not simple, but, for example, with a screen, then it is better to contact specialists. All that you can do on your own in this case is to remove the battery to avoid worsening the situation.

Features of disabling alarms of different models

The article presents the most general principles of anti-theft manipulation. It is necessary to take into account the nuances of handling various modifications of such kits. For example, in the M550 and LX440 variants, the system shutdown code consists of 2 digits, while the S250 kit uses a single-character encoding.

Alligator m550

The procedure for deactivating the security state consists of the following steps:

1. Use the key to open the car. The siren will blare. The turn signals and interior lights will flash.
2. The key starts the engine.
3. Within 15 seconds, you must first enter the first digit of the password, after a few seconds the second digit is entered. The password can be specified either using a communicator or using Jack.
4. When the system recognizes the entered password, the siren will stop screaming, and the blinking LED will also go off. If this does not happen, you must repeat the entire above procedure again.

Alligator lx440

The security system is activated as a result of the implementation of the following algorithm:

1. The driver's door of the car is opened with a key.
2. The key is turned in the ignition, the engine starts and immediately turns off. The countdown to blocking begins.
3. The Valet emergency button is pressed within 10 seconds a number of times equal to the first digit of the password.
4. The ignition turns on and off.
5. In the next 10 seconds, you must have time to enter the second digit of the password by pressing the emergency button.
6. At the end of the procedure, restart the ignition again.

Alligator s250

In this modification, the procedure is similar to the previous ones, only a unique password is entered. At the end of the manipulations with entering the secret code, you should start and stop the engine.