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The Importance of Ignition and Key Replacement The ignition switch is an essential component of the start-up system of your vehicle. It's easy but it's important. It converts the full power of your battery into a spark that ignites the vapor of fuel and initiates your engine. Like any complicated system the ignition switch is prone to become problematic as time passes. Sometimes, it might require a bit of adjustment to get it to work. In other cases, it may need to be replaced. What is an Ignition Switch? The ignition switch is among the most important components of your vehicle. It allows you to switch all the electrical systems on that start your vehicle. It is crucial however, it is often misunderstood. This can cause issues with your vehicle. We want to help explain the basics of the ignition switch, how it functions and what causes it to fail, and how to keep it functioning smoothly. There are three major settings in your ignition switch on, off, and on. In the off position, your key can be removed, but nothing else turns on. This disables all the systems that do not require you to start your engine, including the dome lights as well as certain door locks. The accessory position (also known as ACC) lets you use some of your car's non-ignition-controlled systems, like the radio and power windows. To start your car, you must connect the ignition switch to the circuit that powers the starter motor. To do this it is necessary for the ignition switch to first be able to unlock the ignition cylinder. This is done electronically, by recognizing the key cut. A small tumbler is responsible for locking and unlocking your ignition switch. It must be able to match the unique cut of your key. The tumbler is a small piece of metal that has ramps on both sides. When you insert your key it presses against the ramps and triggers the system. The ignition switch is a minor component that is often unnoticed until something goes wrong with it. It is essential to replace it when it appears to be failing, because it is responsible for the operation of all of the major systems in your car. Luckily professionals can easily replace your ignition switch, restoring your vehicle's functionality to its fullest. What is the mechanism by which an ignition switch function? If you've ever felt frustrated by a car that would not start, there's a high chance that the ignition switch could be to blame. An ignition switch is a type of electrical switch that completes the circuit that starts your engine. It's part of the key cylinder inside your car, or the ignition button on modern vehicles. It's a complicated system that must be operating correctly for your vehicle to start and function properly. Your ignition switch has four positions: accessory, off, on and Start. The off position stops the power from reaching systems such as your radio or HVAC controls. The accessory position lets systems that do not require a lot of power to function like the dashboard lights and fuel pump priming. The on position is where you power your starter, while the start position is where you turn your engine over in order to start it. Inside your ignition switch is a set of contacts that shut when you alter the position. These contacts do not have a large current flowing through them, but rather they are relays that make the functions work. They are susceptible to a great deal of wear and tear over the course of time. They are also susceptible to failure due to age or heat, or even heavy key chains that cause them to move and bend, which can eventually lead to the contacts disconnecting. The ignition switch also features a lock mechanism that is mechanical to ensure your vehicle's security when it is parked. It's a security measure which is designed to prevent the theft of your vehicle. However, it can be affected by malfunctioning internal components. If your ignition switch isn't working correctly, you may find that it takes longer than usual to start your car or that the engine won't start at all. These are all signs that your ignition switch is in need to be replaced. It's important to not ignore this, since it's an essential component of your vehicle that you depend on to get you to where you're supposed to go. It is best to consult a professional to diagnose the problem quickly in order to avoid any further issues. How do I change an ignition switch? When you start your car, the ignition switch provides energy to the charging starting, ignition and charging systems. Over time the ignition switch can wear down or become corroded. This could cause various issues such as difficulty getting your car started. To avoid problems in the future you should replace the ignition switch if it is malfunctioning. The procedure to replace the ignition switch is different based on the year and model of your vehicle. However, in the majority of instances, the procedure is fairly straightforward. The first step is to remove the dashboard cover or cover of the steering column to gain access to the ignition switch. Once you have removed your cover, locate the ignition switch underneath and carefully pry it away. You may also need to take off some screws. Then, you'll need to disconnect the electrical wires from the ignition switch. Once you have disconnected all electrical connections, it is possible to remove the cylinder for ignition lock from the ignition switch. If your ignition switch is equipped with washers, then you'll need to remove them. Install the new switch after you have removed the old one. Make sure you align the switch with the ignition cylinder correctly. After you've done this, you are able to reconnect the wire and test the ignition switch. If everything works correctly, you can reassemble your steering column and any panels or covers that you removed. In the majority of cases, you will require a new ignition key. This is because the previous key is likely to be worn down and no longer compatible with the new ignition switch. Some older models can work with the new ignition switch provided the key is in good shape. Get a professional's help if you aren't sure if you require a new ignition switch or key. A locksmith or dealership service shop will be able provide you with a definitive answer. You could also ask your auto parts shop to provide you the new key that will work with the new ignition. Do I require a new Key? If your car is an older model and a standard key you can replace the ignition without the need for an entirely new key. Many modern vehicles use complex electronic designs and have specialised security systems. The replacement ignition switch needs to be used in conjunction with a new key to work correctly. In this situation you must determine whether the cost of purchasing the new key is covered by your warranty or insurance policy for your vehicle. Make sure you replace the ignition switch by using the proper tools. You can cause more damage when you try to force an ignition key that is stuck inside its lock out, than if you hired a professional locksmith. If you attempt to do it yourself could lead to costly repair bills for unrelated issues or, even more serious, a vehicle fire. If the ignition switch is broken, the most common issue is that the car isn't starting. This is often due to a malfunction in the transponder chip, or the ignition switch itself. If one or the other is not working properly it can cause the car to have problems starting in certain places or the anti-theft system may be activated. If your car isn't starting, you should bring it to an auto locksmith in your area to have an inspection. G28 Car Keys can identify the issue and suggest the most effective solution. If they have the right equipment and parts they will also be able to programme your current key to the new ignition or cut the new one for you. You'll need to bring your vehicle to the dealer for this type of replacement if it is equipped with transponder or smart key chip (also called the proximity sensor based key). The dealership will need to conduct a relearning process to match the new key with the vehicle. This can be accomplished at the location of the shop or the parking lot.