To be able to easily control the alarm system of their car, drivers use a command keychain. This is a radio transmitter that encodes information in a specific way. This code is perceived by the system control unit and obeys the will of its owner.
For some reason, a driver with an alarm system may need to change the type of radio program once. To carry out such an action, you need to learn how to reprogram the alarm key fob. Experienced auto mechanics are ready to give advice on how to solve such a problem. Each type of system has its own technology for reprogramming the remote control.
When is reprogramming necessary?
Keychain reprogramming may be required for several reasons. It happens that a driver buys an already used car in which an alarm has already been built in. The previous owner transfers the key chains to the new owner of this vehicle. But there is always the possibility that he still has one or two control panels at home.
To protect yourself from trouble, you need to reprogram the keychain. This is considered an unwritten rule in force when buying a used car.
There are also some malfunctions that can cause the control and the system to become out of sync. If a dynamic code is used in the alarm system, when you press the key fob button more than 30 times outside the coverage area of the transmission unit, the remote control may get loose from the program.
Binding can be done independently. This process is simple, but has several features.
Preparation for work
Before reprogramming the key fob, it is necessary to familiarize yourself with some features of the upcoming process. If the keychain has been lost, you should only purchase the new device from the same model that was originally bundled with the alarm.
If the system is controlled by several radio transmitters, they are reprogrammed all at once. Otherwise, subsequently they cannot be attached to the control unit.
Most security system vendors always include instructions in the kit. Difficulties arise if it does not have a tab with text in Russian or is written with the assumption of many errors (especially if the device is made by China or Korea).
First of all, the owner of the car should look into this manual. It should schematically show the device of the remote control, signal receiving unit, etc. If, for some reason, the manual is missing, you can try to follow generally accepted instructions.
Programming mode
Setting up an alarm key fob of any system begins with a search for the Valet or Overread button. Finding it is sometimes quite difficult. At this point, the original manufacturer's instructions come in handy. If it is not there, you will have to search yourself.
This button is a switch. To prevent the driver from accidentally pressing it, the button is usually located in a place hidden from prying eyes. But there is always the opportunity to get to it. Most often, manufacturers of security systems leave this switch in the fuse box, which is located inside the cabin.
Owners of foreign cars should look under the panel with the inscription Fuse. The cover will need to be removed. Next, the open space is examined for the presence of a switch. It happens that the button is not here.
Then you need to explore all the places under the steering column, dashboard. In this case, it is necessary to carefully check all removable plugs. Next, you need to pay attention to the glove compartment. In some cases, the button may not be installed at all. It can also be located next to the control unit of the security system. In these cases, you will need to resort to the help of a professional auto mechanic. If the button was not provided by the system, its role may be played by the ignition switch.
Core programming technology
Studying the question of how to attach the keychain to the alarm, you should consider the basic principle of this process. After the switch button is found, the system is put into service control mode (Valet mode). This allows you to set new functions, perform maintenance and force off the alarm. Keychains also bind to the system in this mode.
However, setting the programming mode is not so simple. To do this, you need to know the special combination of pressing the switch. This is a specific security code that is needed to enhance the safety of using a car. It is prescribed by the manufacturer in the instructions. If, for some reason, the code has been changed, only a professional in the technical service can restore it.
If the code came up, you can start programming. Typically, a kit can include up to 4 key fobs, which the car obeys. The alarm will work correctly if all remotes are tied to it at the same time.
To make the process easier, you should assign numbers to each button on the remote control. “1” - activation of protection; “2” - removal of protection; “3” - channel ch2; “4” - channel ch3; "5" - adjustment of the remote control signals.
Sheriff Keychains
To understand how to attach a keyring to a Sheriff alarm, you need to read the instructions. First of all, the driver turns off the alarm and gets into the car, closes the door, turns on the ignition.
Next, the Valet button is pressed three times. After a single signal sounds, the control unit has entered programming mode. Each operation should be performed no longer than 5 s. Otherwise, the system will exit the programming mode (a short and then a long signal will sound). If you turn off the ignition, the same thing will happen.
If you repeat three button presses, the alarm will emit a few short and one long beeps. The button “1” is held on the first keychain. When a long beep sounds, reprogramming has occurred. All other trinkets undergo the same procedure. Then you can exit the setup mode (wait 5 s.).
Changing the secret code in the Sheriff system
When studying how to reprogram an alarm key fob , you should consider the procedure for changing the secret code. To do this, the security system is disabled. Next, enter the secret code using the Valet button. Ignition on, off and on again. Then, using the same button, the first digit of the encoding is set. Then the ignition turns off and on again. Then the second digit is entered. The procedure is repeated. A sound signal will indicate the correctness of the entered encoding.
After the above manipulations, by triple pressing the settings lever, you need to enter the service mode. The alarm will emit a few short and one long beeps.
On the first keychain, press the "1" button. A beep will inform you that the manipulation was successful. According to this scheme, all other transmitters are tied to the alarm.
Starline Keychains
If a Starline A91 alarm is installed in the car , reprogramming is quite simple. To do this, the alarm is turned off. The hidden button to enter the settings must be pressed 7 times. Only after that the ignition is switched on.
If the settings mode is activated, the siren will emit 7 beeps, and the backlight on the remote control will also appear. Next, you can reprogram the Starline key fob. At the same time, the buttons "1", "2" are clamped. A single beep will follow. Subsequent remotes are then programmed in the same way.
Exit settings mode automatically after 10 seconds. inaction. In this case, 5 outbreaks of the side lights will occur.
Programming Starline Twage A6, A8, A9
Programming the popular Starline A91 alarm model is easy. But it should be borne in mind that the presented brand has a whole line of security systems of the Twage series.
To reprogram remote controls for Starline Twage A6, A8, A9 systems, turn the ignition on. The settings input button is clamped for 6 s. Then 4 beeps will sound.
To bind the keychain with the display, the buttons "1" and "2" are clamped together. This procedure is similar to the previous settings. For an additional remote control without an LCD display, you must hold down the buttons "3" and "4". The number of beeps corresponds to the number of the radio remote control.
When all the key fobs have been recorded, the ignition is turned off. Further, in the absence of any action, the setup mode closes after 6 seconds. The side lights will illuminate 5 times.
Tomahawk system
The Tomahawk keychain can be recorded quite simply. In the package, they can be up to 4 pieces. To make the binding, turn the ignition (the engine does not turn on). The settings button is held down until 4 siren sounds. The lever is released.
At the same time, the sound control buttons on the remote control and trunk opening are pressed. Keep them in this position until a signal sounds. For the first key fob, one beep will follow, and for the second transmitter, two (and so on). When each Tomahawk keychain remembers the code, the system is left idle for 5 seconds.
Alarm "Sherkhan"
To program the Sherkhan alarm key fob, you must use one of the 2 main methods. The first approach does not use a pin code. Within 4 s. it is necessary to turn on and off the ignition. If the dimensions flicker, the settings are entered.
Immediately you need to press the button of the first keychain. Dimensions flicker 1 time. The same thing happens with other remotes. To exit the settings mode, you must wait 4 s. After that, all the key fobs tied to the control unit will function. Other devices will no longer be able to control the operation of the car.
PIN settings
The second version of the Sherkhan system can use a pin code. To do this, when turning on the ignition for 4 s. the first digit of the code is entered. When the dimensions flash, the second digit is also entered. Then the button on the keychain is clamped. Next, the procedure is performed in accordance with the previous method. To exit the service mode, you must wait 4 seconds.
Knowing how to reprogram the key fob , you can quickly perform the procedure in any situations. Especially often in low-cost systems failures occur. To quickly restore communication between the remote control and the control unit, you need to know the communication technology of the control panels with the alarm system.