Alarm key fob light is on. What to do if the alarm light is constantly on

The operating modes of the car alarm are controlled by the alarm indicator lamp. The alarm status is monitored without using a key fob with an LCD screen. From what mode the security device is in, the alarm lamp is on, blinking or at rest (off). The article presents a brief analysis of LED indicators for several types of alarms.

Alarm light options

Each developer of car alarms puts a certain state of the LED into the algorithm of functioning. Under different conditions, it burns, blinks, there is an alternation of flashes or is in an extinct state.

Below is a table of lamp states (solid, blinking, resting) placed on the machine.

The car alarm PANDORA (more about) uses a three-color light bulb. The car alarm indicator on the car is on or flashing, we suggest that you familiarize yourself with the table below.

The LED can blink from 1 to 3 times per second or not light at all.

Different states of the alarm lamp

Today, vehicles without car alarms are some of the classics of the distant Soviet period. Security systems are installed at service stations, supplied with cars from manufacturers. Like all technical means, they are prone to breakdowns and failures. A failure is signaled by a light bulb, it is on all the time, blinks without stopping, or has gone out completely. Let's analyze the most common situations.

Causes of constant burning of a light bulb

A constantly lit light bulb signals that something is wrong with the car alarm. The reasons can be very different, among the main why it burns are considered:

Accidental activation of the "VALET" mode. In normal modes, it is activated in car alarms by combinations of key fob buttons. Unintentionally pressed activation buttons cause the LED to glow continuously, which causes unpredictability of the driver's actions when the light does not blink, but is on all the time. If the service alarm mode is accidentally activated, the security options are deactivated. There is an option that remotely controls the opening and closing of doors, hood, trunk of the car. Bringing to a working state is carried out according to the operating instructions for the car alarm.

Technical breakdowns. In cases where the lamp should blink, and it is on, the malfunction should be sought in the technical component of the alarm. One of the reasons is problems with limit switches. The essence of the problem often lies in oxidation, burnout of the limit switch contacts. As a result, the car alarm circuit does not close, the LED is constantly on, the car is unprotected. The problem is eliminated by cleaning the contacts, replacing the switches. Another problem, when the car alarm lamp does not blink, but is on, arises when the device's sensors fail. The problem is properly solved in the service centers.

Failure in software or hardware. If the LED on the car remains on after checking the above reasons, there are problems in the main car alarm unit. An accurate diagnosis will be made by the service center specialists, followed by troubleshooting.

Causes of frequent flashing of the alarm lamp

A common problem with signaling vehicles is the frequent blinking of the indicator light, followed by blocking the start of the engine. One of the reasons is the improper operation of the limit switches, the closing parts of the car. It is enough to fail one of them and a failure occurs in the correct operation of the device. It is enough to clean the contacts or replace the switches.

Another reason is the incorrect location of the powertrain temperature control sensor. The car alarm LED will start operating normally if the sensor is reset according to the instruction manual.

The alarm light has stopped burning - reasons

In the practice of motorists, situations occur when the alarm LED does not light up and does not blink at all. Experience shows that the main reasons can be as follows:

• The main unit is overheating;
• Installation errors, with power off, the alarm returns to the factory settings;
• Contacts, wiring, fuses burn out.

Diagnostics of specialists will help to accurately determine the problems in the security system on the car. For a car owner ignorant of the nuances of electronics, it is difficult to identify the reason why the LED does not light up. Service centers that have devices and tools will perform the alarm recovery with the highest quality, so that the light bulb meets its purpose: when necessary - blinks; when necessary - it burns.

So, this article discusses the main reasons for what problems can be in car alarms, determined by the state of the light bulb. It burns incessantly; blinks out of place; does not light up.

As a result, it was revealed that the alarm problems are associated with the operating state of the limit switches. Sometimes sensors are the cause of the wrong behavior of the car alarm LED. There are problems with the main processor unit: hardware failure; incorrect software operation.

Timely diagnostics and troubleshooting will save the car from intruders and theft.

Now it is difficult to find a car without an alarm. Some get the security system in the factory, some later - at the service station. But there are situations when everything worked yesterday, but today the alarm light is constantly on or blinking. What to do, and is it necessary to do something in such cases?

The reasons

What does such a light bulb mean? Often this is a signal to the driver (or owner) that something is wrong with the system... Let's look at the most common cases why the alarm light is constantly on. There can be many reasons, but there are only three main ones:

• accidental pressing of buttons on the key fob;
• no contact on the end switches of doors or hood / trunk lids;
• the system as a whole or individual sensors does not work.

If for the latter case the recipe is universal - a service center, then the first two can often be solved by ourselves.

Important! If the lights are on, the security system is partially working or not working at all.

We'll talk about limit switches below, because in almost all cases, there is one reason, and it is solved according to one recipe... In addition to the fact that the alarm lamp is constantly on, this can be understood by other signs. Now let's look at the first point - accidentally pressing the buttons on the key fob.

If the owner carries the keychain in his pocket, then an accidental movement can press a sequential combination that includes the so-called service mode. While the mode is working, a blue alarm lamp on the owner's call sensor is on. The mode is intended for servicing both alarm components and the entire machine as a whole, and is activated by the masters at the station.

In this mode, locks work, and that's all. This mode is sometimes referred to in the documentation as "valet" or "valent".

Attention! In this mode, the alarm is disabled (does not work).

Nevertheless, practice shows that the mode can be turned on by accident.

Blinking of a light bulb in popular models of alarms

Sherkhan

So, we have a light on the Sherkhan alarm constantly on. How to check if the service mode is enabled, and if it is, disable it? Note that not only in Sherkhan, but in most systems, the key combination is written on the back of the key fob. The owner should also remember that the service mode indicator is blue. In other words, if a blue light is on on the Sherkhan alarm, the first thing you need to pay attention to is the accidental activation of the service mode. Sometimes, in the case of a key fob with an LCD display, a symbol resembling one or more Latin "Z" may be displayed on it.

To disable (or enable) maintenance mode, the owner must press simultaneously buttons "1" and "3"holding them for one second.

Attention! Holding it for two seconds will disable the shock sensor, which will not be indicated in the service mode.

If everything is pressed correctly, then the light goes out. Sometimes, depending on the modification of the security system, the car may respond with sound signals or flashing headlights.

Sherkhan can illuminate almost every event with bulbs. Sometimes the light will not be blue, but red. A red light anywhere needs attention. If a red light is constantly on on the Sherkhan 5 alarm, you definitely need to pay attention to this. The security system indicates the presence of one of two problems:

• the battery is discharged below the normal winding mark. Most often, it is no longer possible to leave in such a car;
• the car needs a visit to the service center because the malfunctions are of an extraordinary order.

We will not dwell on these options in detail. If the car starts up - you need a center, if it doesn't start - you need a new battery. However, Sherkhan 5 is just an example. Everything described is also suitable for other models of this system. In any case, if the Sherkhan alarm light is on, then something needs adjustment.

Starline

If your car has a Starline system, then all of the above, in principle, is suitable in this case, with the exception of one little thing. In the latest models of Starline alarms, the light blinks, and does not light up constantly, like in Sherkhan.

Disabling Valet will also look different.

Attention! Enabling the mode allows you to open the car, other security functions are deactivated.

And if in normal mode we turn off the alarm, then open the car, then under normal conditions nothing will blink. However, when the Starline service alarm mode is turned on "car open", the light will continue to blink. Again, this is not a problem. You can use the car, move around the city, but the blinking alarm lamp while driving will remind you that the security functions are deactivated at the moment.

To turn off the valet in the Starline alarm, just press the button "2" once(in the figure, the middle button on top). In this case, the light should go out, and the “VALET” mark will disappear on the key fob display.

Tomahawk

The developers of the Tomahawk system took a slightly different path. Unlike Sherkhan, who gives a lot of information with different bulbs - in the Tomahawk alarm, only one is lit when both the service mode and the "passive immobilizer" function are turned on. In this case, the difference between the modes is visible when "disarming the car". The immobilizer will extinguish the light on repeated removal, the service mode will not. Removal from the service mode is made by several pressing of the "z" button on the key fob. This is implemented differently in different versions, so you need to look at the instructions. Usually once with retention and once briefly.

Pandora

The red light, as mentioned above, is a reason to pay attention. If the red light on the Pandora alarm is on, the connection with the key fob may be lost. At the same time, the loss is not permanent, sometimes everything works normally. Here it is worth paying attention to the fact that according to the specification, this security system checks the connection only in the armed mode. There are no checks at other times. Often, either the key fob battery or the contacts in it can be to blame for this. If replacing and checking the contacts does not help, only to the service center.

End fittings

Before writing about limit switches (limit switches), it is necessary to separately mention the feature of the Starline security system. At a good driving speed, in some cars the air flow running on the hood can slightly raise it. But the Starline bonnet contacts are located so that the warning light will be on while driving, indicating that the bonnet is not closed.

You can also note the limit switch on the trunk of cars in which the Sherkhan system is installed. While the trunk is not tightly closed (for example, due to non-standard cargo), a blue light will be constantly on on the Sherkhan alarm.

This is what a limit switch might look like.

If the owner has checked the functions of the "immobilizer" and is sure that the service mode is not enabled, it is necessary to check the limit switches of all doors, not just the hood. If the contact is oxidized, dirty, or the cover presses on it with insufficient force, this is the second reason why the light on the alarm is on. Checking and cleaning - usually fixes the problem, after which the light goes out.

Light does not blink

Finally, we will analyze a special case when everything worked before, but now the alarm light has stopped blinking. As in other cases, there are several solutions:

• at the service station something was too clever;
• the signaling works, it just doesn't blink.

In both cases, only the service station can finally solve the problem.... Just note that the owner knows the answer to the first option. The second case can be diagnosed at home, before going to the service station. If the light just went out, the alarm in this case is operating normally. Turn on as usual, and then check. If the security system senses an alarm, the owner will immediately understand it. If nothing happens, decide only through the station. For simplicity of the test, some sources recommend trying while sitting in the car.

Advice! It is still worth contacting the service station. Alarm light - health indicator.

Sometimes the light goes out in another case. A reaction that can only manifest itself over time, and only at the driver's door. Here it's not about the limit switch as it was written above. You need to check the contacts in the lock activator.It is easy to diagnose - sometimes the lock sticks (does not freeze).

A constantly burning light bulb has been mentioned several times in this article.

In conclusion, it should be noted that the security system today includes a number of parameters, and the question of what to do if the alarm light is on constantly should not arise for the current owner. First you need to diagnose yourself (in particular, the service mode), and do not delay with a visit to the service center. Of course, the on-board computer often helps in diagnostics, but there is something that it simply does not understand what is normal and what is a problem.

Nowadays, it is quite difficult to find a car without an installed alarm, perhaps only an old Moskvich, who has been gathering dust in the garage of an equally young grandfather for a long time. And more modern models are already initially equipped with standard electronic protection devices from the automaker. However, electronic security systems have an unpleasant tendency to break down, "glitch" and give other failures that make negative changes in the daily routine that we are used to. Most car owners determine the state of their "signaling" by the LED lamp, which is made in order to display the current status of the protection system with various light signals. However, not everyone has an idea of \u200b\u200bwhich light signal means this or that alarm state. Most are guided by what signs the LED has shown from the moment it was installed in the car, mainly this is a measured blinking. And as soon as this very blinking turns into something else, then every car owner certainly considers it his duty to dig into the protection system and find out what is actually the matter. On the one hand, this is correct, because no one wants to leave their car in the care of an "inadequate" alarm system. On the other hand, if you are not a car thief or an employee of a service station, then it will be quite difficult to understand such complex devices, and is fraught with the final breakdown of the security system. And the most, perhaps, frequent question, which is usually followed by picking "signaling", is why the alarm light is constantly on? To this we will try to answer you further. Contents [Show] REASONS WHICH THE LED IS STANDING LIGHT There are several reasons why the alarm light is constantly on: The most common reason is the “Valet” service mode is running. The second fairly common reason is the malfunction of the door limit switches, hood and trunk. Well, a less common reason why the alarm light is constantly on is a software failure in the operation of the security system itself, as well as the failure of one or more sensors. This problem can be associated with both a software failure and a problem in the electronics itself. After reviewing the list, let's look at all the points in more detail, and start, perhaps, with the most common cause, which is most likely to occur. SERVICE MODE “VALET” The very designation “service” already indicates that this function is intended for service work both in the security system itself and in the car as a whole. In this mode, all security functions of the device are deactivated, and the car protection does not react to anything. The entire functionality of the alarm in this state is reduced only to the possibility of remotely opening and closing the locks of doors, hood and trunk. At the same time, the LED lamp stops blinking and goes into constant operation mode, on some devices the lamp goes out when the engine is running. The mode is activated on most devices from the remote control by pressing a certain combination of buttons. Thus, if you carry the remote control in your pocket, the buttons could accidentally be pressed in the desired combination, thereby activating the mode. Basically, such combinations consist of pressing and holding two or three buttons at the same time, less often there are complex combinations of successive pressing of the corresponding buttons. Valet mode can be turned on by accidentally pressing buttons on the remote control. There are systems that do not provide for the activation of such modes via the remote control. For such devices, a button is installed in the cabin, the so-called "Valet". Such a button in the cabin is a real happiness for car thieves, since it allows you to instantly turn off all car protection, including engine control. Therefore, having discovered such a button, an attacker can easily drive away in your car wherever he pleases. How to find the "Valet" button When installing the anti-theft device, each owner has the right to choose the location of such a button himself. A similar button is placed in the secluded corners of the car, and the better you hide it, the more chances that the hijacker will not find it. You can install it anywhere, even in the trunk or under the hood. But if for some reason you did not take such part in the installation of the alarm, then basically, by default, the button is located under the steering column, covering it with an inconspicuous plug. If there is nothing under the steering column, in this case, we recommend looking at the technical instructions for your alarm, namely the location and designation of the output sockets to which various sensors are connected, and our cherished button. When you find the right connector, just follow the wire leading from it, and in the end you will run into what you were looking for. If the remote alarm has a display, then when Jack mode is on, the screen will in most cases display a “Z” icon. In order to deactivate the mode using the button in the passenger compartment, press and hold it for about ten to fifteen seconds, after which the car will emit several short beeps accompanied by light signals of the side lights, and the LED lamp in the passenger compartment will go out. However, this method of activating and deactivating the mode is not suitable for all devices, just as the key combination on the remote control is different for each manufacturer. Below we will provide combinations of the necessary buttons on the remote control of the most popular alarms. For more detailed information on enabling and disabling the mode in systems that are not included in our list, refer to the instructions or contact the service center of the manufacturer of your security system. Activation and deactivation of the "Valet" function in the Star Line Twage B6 alarm To activate using the remote control, hold down key three until the remote emits one long and two short sound alerts. One of the icons will start blinking on the remote control screen. By short pressing the key three, set the blinking of the "VALET" icon. Press button one, after which the car will notify you with a light signal of the side lights, and the remote control will emit two short and two long beeps. After that, the "VALET" icon will be permanently displayed on the remote control screen, and the LED lamp will switch to continuous operation. Deactivation is performed by pressing key two, after which "VALET" will cease to be displayed on the remote control screen, and the alarm lamp in the passenger compartment will go out. Similar manipulations apply to the Star Line Twage B9 system. Activation and deactivation of the "Valet" function and the Scher Khan Magicar 5 signaling To activate the mode, simultaneously press and hold the "I" and "III" keys for no more than one second. Be sure to observe the duration of holding the keys, since the same combination, when held for two seconds, deactivates the shock sensor. After activating the Jack mode, the light is on constantly. To deactivate the Jack, repeat the activation combination - "I" and "III" hold for no more than a second. If the shock sensor is accidentally deactivated, press the "I" and "III" keys and hold them for at least two seconds. Similar combinations are used in the Scher Khan Magicar 6 system. TECHNICAL AND SOFTWARE FAULTS Another common reason why the alarm light is constantly on are faulty door, hood and luggage compartment switches. The end switch is a small button that is installed in the car door. The security system unit is connected to them, when the door is closed, the limit switch button is pressed, thereby closing the circuit. The alarm thus recognizes that the door is closed. Defective, oxidized contacts in the limit switch may not close the circuit, as a result of which the protection system may not understand the current situation, and will notify you about the allegedly unprotected place of the car by the constant operation of the LED light. Such problems can be eliminated on your own, you just need to disassemble all the limit switches, thoroughly clean the contacts, rinse in alcohol and lubricate with electrically conductive grease. Then you can reinstall the buttons to their original place. Although in rare cases, the answer to the question of why the alarm light is constantly on can be various sensors that have failed, for example, sensors for shock, volume and position of the body. In such cases, it is better to seek help from a service center. Also, you should contact a specialized center for help if the alarm lamp is constantly on due to a software or hardware failure in the security system unit itself. If none of the check of the above reasons gave a positive result, then, most likely, a failure is in the signaling unit. In conclusion, we wish that from now on you will never again be tormented by the question of why the alarm light is constantly on, as well as restful sleep at night without worrying that someone will take your "iron friend" away.

Alarm malfunction is one of the most common vehicle malfunctions. At the first manifestations of abnormal operation of the car alarm, measures should be taken to identify the causes of failures, and begin to eliminate them.

Otherwise, a situation is possible when the anti-theft system will deny access to the passenger compartment or prevent the engine from starting. Consider the main symptoms of a car alarm malfunction, the reasons and how to fix them.

Why the alarm light on the windshield is not on

In this situation, there are three options for the security system:

1. The alarm works in normal mode, except for only the light indication of the control LED

Most likely, the connection of the main alarm unit with the control LED is broken. Usually, the connection of the indicator LED to the head unit is organized by a two-wire conductor through a chip.

It can be damaged by mechanical stress. The wire is usually routed from the lower zone of the front driver's pillar (there is usually an alarm) up to the windshield, the driver can touch it with his foot. The connector contact may also loosen or corrode, in which case it should be tightened.

If such actions do not help, you can ring the LED with a multimeter. It rings like a regular diode: in one of the directions, the resistance is equal to infinity, in the reverse connection of the probes, the resistance will be about 600 ohms. If the LED is defective, it must be replaced with any low power LED of the appropriate color.

2. The alarm does not respond to the key fob signals when arming

For example, the LED on the key fob blinks, the display key fob works normally, but the car is not locked.

The probable reason is the absence of one of the supply voltages for the signaling or a reliable connection to the body. It should be checked serving the central alarm unit. They are usually found in the steering column space on abnormal conductors or sockets.

You should also check with a multimeter the presence of the supply voltage "+12 Volt" on the fuses, the connection quality of the blocking alarm relays. If these actions are unsuccessful, you should try to restore the alarm to its original (factory) state using the Valet button. To do this, you must follow the instructions attached to the security system kit.

3. The alarm does not respond to key fob signals when disarming

The LED on the key fob blinks, the display key fob works normally, but the car remains locked.

First of all, you need to open the car with a mechanical key. Then, using the Valet button, remove the car from the alarm, then bring the car alarm to the factory settings. Next, you need to try out the methods listed in the previous paragraph.

What to do if the alarm indicator is constantly on

There are three situations of such car alarm operation:

1. The car is locked and does not respond to signals from the operating key fob

If the car is closed, use the key to open it and deactivate the alarm using the Valet button. Most often, the constant glow of the diode indicates a software failure of the security system.

Modern security systems are a complex microprocessor controlled complex. They can freeze like a computer. You can try to restore factory settings using the Valet button. Sometimes it helps to disconnect the alarm from the power supply by removing the fuses serving it. It is safer to disconnect one of the terminals of the storage battery for 15 - 20 minutes.

The Valet button is usually located near the driver's left knee or in a hidden place no further than 50 centimeters from this zone.

A typical way to deactivate the alarm using a secret button: turn on-off-turn on the ignition, then briefly press the button once (sometimes three, five) times. If the car reacts to it, pressing will be accompanied by a sound or light signal.

2. The car is not locked, does not respond to signals from the working key fob

The sequence of actions is approximately the same as in the previous paragraph. If there is a spare or additional key fob, you can try its interaction with the alarm.

If the alarm does not respond to the Valet button, most likely one of the voltages supplying it is missing, or the main alarm unit is faulty. It is possible to check the serviceability of the unit only by temporarily installing a known working unit of the same model. It can be temporarily borrowed (not free, most likely) from a workshop that installs alarms from this manufacturer.

3. The car is not locked, the alarm is working normally

The probable reason is the breakdown of the control transistor in the head unit of the car alarm.

If it is built into a microcircuit, then such a repair is carried out by replacing the microcircuit, but this cannot always be implemented in practice.

Another possible cause is a short in the wiring leading to the LED.

If the light on the alarm key fob

Lights up constantly

Possible situations:

The reason for the constant glow of the diode can be a breakdown of the control transistor in the keychain. It is located separately on the board or built into the control chip. In the second case, it is cheaper to change the key fob or the entire board. If the transistor is faulty, it can be re-soldered to a good one. Such repairs require appropriate qualifications.

The probable cause is a software or technical failure of the key fob.

The first step in such a situation is to try temporarily (for 15-20 minutes) to get the keychain battery. Just in case, you need to check the value of the residual voltage on the battery. If it is less than the nominal value by 20 percent, it should be replaced.

At the moment of re-installation of the battery, the microcontroller of the key fob is rebooted, after which it can return to working state. If a similar situation repeats again within a short time (month), the key fob should be replaced, after which it must be "registered".

Does not burn

Possible situations:

1. The car alarm is working normally

Most likely, the cause of such a malfunction is the failure of the LED or corrosion of the place of its soldering. It is necessary to disassemble the key fob, ring the LED and the additional resistor with a multimeter.

If the LED is working properly, you need to solder the place where the diode is installed into the board Sometimes corrosion (cold soldering) is not visible even under a magnifying glass.

2. The alarm does not respond to key fob signals

Typical malfunction. The most probable reasons are battery discharge or key fob malfunction.

Some car owners limit themselves to dismantling the battery from the remote control and checking the residual voltage with a multimeter. After making sure that it corresponds to the nominal value, they decide to replace the key fob. This is not entirely correct. Under load, a heavily discharged battery may not provide the current required for normal operation of the key fob circuit. Therefore, it is safer to replace the battery.

In the case when the key fob accidentally fell into a puddle, another water environment, was stored in damp conditions, it is possible that mold, corrosion has formed on its board, which leads to large leakage currents, inter-track short circuits. The battery in such a situation can be discharged within a week. It is necessary to disassemble the keychain and clean its board with alcohol. Do not use other solvents.

Most modern cars are equipped with factory alarms. It is not uncommon for a car owner to buy a used car with an alarm already installed. In both cases, the car owner may not know all the intricacies of the security system of his vehicle. A constantly lit alarm light is a sign that the car's security system is broken. In this case, it is necessary to understand the reasons for the constantly working indicator and eliminate them in order to restore the system's performance.

Main reasons

There are several main reasons why the alarm system indicator is on with a constant non-flashing light.

1. The most common cause of a permanently lit alarm indicator is whether the Valet security system is intentionally or accidentally turned on. In this mode, the indicator lamp lights up with a constant light. However, the car is not guarded. The car owner is notified about the inclusion of such a mode by an inscription on the electronic display of the alarm key fob.
2. Another common reason for a constant light bulb is a malfunction of the limit switches (limit switches) of the opening parts of the car body, that is, in the doors, trunk or hood.
3. A less common, but still encountered, cause of a constantly lit indicator is a software failure, a hardware alarm error, or the failure of individual sensors.

For some alarm models, a constantly lit indicator can be associated with the activation of certain security system modes: "Panic", "Hands free", with the immobilizer on, with remote engine start, etc. In this case, removing the constantly lit indicator is quite simple. It is necessary to transfer the alarm to the standard armed mode or turn it off for a while.

Various manufacturers of security systems for cars include in the software several modes of illumination of the alarm indicator. In different modes, it blinks, is at rest, or is constantly on. Most manufacturers of security systems have a Valet service mode when the car is unprotected.

Valet is primarily intended for servicing and repairing a car, when the security system can interfere with car service workers. Valet can be accidentally or deliberately turned on by the car owner, in which case a constantly lit alarm indicator informs that the car is not guarded. In this mode, the car owner can only remotely open and close the locks of doors, luggage compartment and hood.

On some alarm models, it is enough just to accidentally turn on Valet mode, since it is activated from the remote control by pressing a key combination. On other models of security systems, it can only be started from a button in the car.

How to disable Valet

The option to disable Valet mode depends on the possible ways to enable it. It is deactivated either by pressing a button in the passenger compartment, or using the remote control of the alarm system by pressing a combination of buttons.

Mode button

The "Valet" button can be located anywhere in the car: both in the passenger compartment and in the luggage compartment or even in the engine compartment. It is often hidden in a particularly inconspicuous place so that would-be hijackers are not tempted to disable the entire security system with a simple push of a button.

As a rule, when installing an alarm, service workers check with the car owner for the desired location of the Valet mode on and off button. If the car owner does not know where such a button is located, it will have to be looked for. The most anticipated locations for the button are the following.

1. Under the steering column is the most commonplace button location, which is also the most unsafe. The area under the steering column is convenient as the driver can press it without leaving the driver's seat. However, potential hijackers are also looking for her in the same place. As a disguise, the button can be covered with an ordinary plug, which will also warn of accidental pressing.
2. Under the driver's seat is another convenient but commonplace option, which is also often masked by a plug.
3. In the driver's door - a dubious option, since in this case it is possible to access it from outside the car.

In general, the placement of the button is limited only by the imagination of the person on whose initiative the alarm was installed. Therefore, in order not to waste time on empty searches, it is better to carefully study the technical documentation of the alarm.

Disabling Valet mode using a button looks the same for almost all car alarm manufacturers.

1. You need to start and then turn off the car engine.
2. After 10 seconds, press the Valet button and hold it for a few seconds, or turn the switch to the “Off” position.
3. The driver is notified of the deactivation of the mode by a double sound signal of the horn, after which the indicator lamp will go out.

Combination to turn on Valet

Another option for disabling the Valet car alarm mode is possible using a remote control, that is, a key fob. To do this, you need to press one of the keyfob key combinations; at the same time, for different manufacturers of security systems, the key combination, as well as the sequence and duration of pressing, can vary significantly.

The exact combination for turning off the service mode in a specific security system model can be found in the car alarm user manual. The key combination for the most common car alarms is as follows.

1. For security systems of the popular Scher-Khan brand, the Valet mode is turned on and off by simultaneously pressing and holding buttons 1 and 3 for one second. You cannot overexpose, since when these buttons are pressed for 2 seconds, the shock sensor will turn off.
2. Valet mode in StarLine family alarms is disabled by pressing button 2 once.
3. In Tomahawk car alarms, the mode is turned off by pressing the Z button, usually you need to press it twice - once once and once while holding the button. For some models of the company's alarms, the method of disconnection may differ, therefore, you should first study the manual for using a specific security system.
4. For Alligator alarms, the mode is turned off by simultaneously holding buttons 2 and 3 for 3 seconds.

Mechanical damage, manifested in the constant burning of the indicator, is usually associated with the limit switches (limit switches) of the doors, luggage compartment or hood. Limit switches are the simplest open-close sensors, which are buttons connected to the alarm. In the closed position, they are in the pressed position and close the electrical circuit, in the open position they open. The cause of damage to the limit switches can be:

• oxidation of contacts in conditions of high humidity or in winter;
• loose fit as a result of deformation of the body part due to an accident or improper installation;
• breakage due to mechanical stress or shock.

When the electrical network is disconnected, the alarm perceives the body part as open. As a result, the alarm indicator lamp is on with a constant light.

On modern cars equipped with a display, it is quite easy to identify the problem of an inoperative limit switch. In the graphic image of the car model, a door or body part with an inoperative limit switch will also be displayed as open.

To solve the problem, you need to visually inspect all the end switches of the car for oxidation of the contacts. If an oxidized limit switch is detected, it must be disassembled and the contacts cleaned.

If the cause of the malfunction of the limit switch is mechanical damage, then it must be replaced with a new one. If an incorrect positioning of the limit switch is detected, the position of the limit switch must be adjusted to the required position for correct operation.

Malfunction of programs or sensors

A fairly rare, but possible reason for the constant burning of the indicator is a software failure or a malfunction of individual sensors. Special meters of the security system include sensors for mechanical impact (impact), changes in the volume in the cabin, body position, etc. If one of the sensors breaks down, the system perceives the situation as an emergency, and notifies the car owner using the indicator. In this case, to diagnose a faulty sensor, you will have to contact a specialized service.

Also, a permanent indication can be caused by a software or hardware error in the electronic control unit of the alarm. You can try to reset the alarm by disconnecting the battery power. If the problem persists, then it is difficult to solve it yourself, so it is better to contact the service center

In any case, the constant burning of the indicator light is a sign that the car is not under reliable protection of the alarm, therefore, the safety of car ownership is reduced. Having found the cause of the constant burning of the indicator and eliminating it, you can restore reliable protection of the car using a car alarm.