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Suzuki Key Fob Programming Before you attempt to program your key fob by yourself, there are a few points you must be aware of. The first thing to be aware of is that the procedure for programming will differ for different car models. Modern cars are usually equipped with an immobilizer. If you don't own the original key for the car, you will not be able start it. Keyless Entry System A keyless entry system can make your car more comfortable to drive in addition to increasing security by permitting you to open the doors and start the engine without having to look for your keys. The system utilizes radio frequency to connect the key fobs and receivers inside the car. It's a simple process and does not require any special equipment or past experience. When you press the button on your key fob it sends a 40-bit message to a receiver within your vehicle. The receiver matches the code with a function code that specifies the action it should take, such as unlocking the doors or rolling up the windows. The system is designed to prevent other people from using your key fob to open your vehicle because each transmitter comes with its unique code. Modern cars have systems that automatically lock the vehicle when you've walked away from it. This could be beneficial if you are prone to forgetting things or are concerned about leaving your vehicle unattended. However, these systems have their shortcomings. For example, thieves can hack into these systems. There are several problems that could cause the keyless entry system as well as remote starters to not function properly. A dead battery in your fob is the most frequent issue. If this is the case, you can try replacing the battery in your fob. If this doesn't solve the problem, you may need to have your fob changed to a different program. Keyless Start System With this technology drivers can begin their engines without having to insert the mechanical key. The fob instead transmits an access key to the console, which unlocks a set of electrical switches, and then starts the engine. Once the engine is started the fob's button can be pressed to shut it off. The system also comes with security measures to stop the car from crashing in gear, or if someone is not within the steering column. Its computer checks to make sure that the transmission is in park, and that the brake pedal is pushed to the bottom before allowing the engine to begin and it could also be programmed to require a particular sequence of button presses before the motor starts to run. Like other modern smart keys Suzuki's key fob is an electronic device that communicates with your vehicle via radio frequency. The transmitter is integrated into the fob, and its signal is picked by antennas that are located inside and outside of the vehicle. These antennas are similar to ones used by the door locks, and permit the car to recognize that the fob is within reach. Once the receivers detect the signal, they'll disable the immobilizer and allow the engine to rotate, just as an ordinary key would. Keyless Remote Control If your key-fob doesn't work, it could have an issue with the physical structure, such as broken battery connector contacts or buttons. It could be a problem with software that needs reprogramming. A few simple tests with a multimeter or voltmeter will determine if the battery still holds a charge and is able to run the microprocessor inside the remote. Key fobs that are newer use RFID (radio-frequency identification) to communicate with the computer of the vehicle. They transmit a digital identity code to the car computer saves this code to ensure that the key fob will be able to unlock and start the car. The key fobs emit a signal in the same frequency as a cellphone and this technology can be used to remotely control certain car systems such as lift gates that power up or to start the engine of a car from outside the vehicle. Fobs emit a loud noise to stop thieves from entering the car. Batteries are by far the most frequent cause of an unresponsive key fob. If this is the case, programming the fob can be done by following some simple steps. Immobilizer As you would expect from the name, the Immobilizer stops the engine from starting without a key fob. The system utilizes LF (low frequency of 125 kmhz) transmitting antennas inside and outside the vehicle that are activated by key fob's button presses or when its handle is pulled. The transponder chip on the key fob is then able to transmit the ID back to vehicle. The module that is aware of the identity of the vehicle compares the ID of the key fob to the one stored in the BCM, and if they match, the vehicle will start. G28CarKeys is very effective at deterring most carjackers, though it does not protect against the more technologically-advanced thieves. In a recent study, security researcher Bokslag was able to slyly hack the Immobilizer in three cars by popular brands within ten second of obtaining keys. The majority of older vehicles use the less reliable, simpler version of this system. It utilizes one code that is personal, which is permanent, and a second code, which changes every time the ignition key is turned. Newer vehicles use an advanced, electronically-controlled Engine Immobilizer system that features two-tier security. You will need the 7-digit SKC (Skip Key Code), that is specific to your car, in order to reprogramme a key. This number is available by the Dealership at the time of purchasing your new Key Fob. You will also need the Workshop Code and Importer Number. The Immobilizer system usually is not affected by a battery disconnect however the Transponder Electronic Control Unit on the Key Fob will need to be reprogrammed through the OBDII port with the right diagnostic tools.