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The Importance of Ignition and Key Replacement The ignition switch is a simple but vital component of your car's starting system. It channelizes the entire power of your battery into sparks that ignite the vapor of fuel and starts your engine. Like any other complex system the ignition switch may suffer problems over time. It is possible to adjust it to get it functioning. 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 car. It allows you to turn all of the electrical systems on to start your vehicle. It is crucial however it is misunderstood. This can cause issues with your vehicle. We're here to help you understand the basics of how the ignition switch functions, what causes it to fail and how you can keep it running smoothly. The ignition switch has three main options including accessory, off and on. In the off position, your key can be removed, but nothing else will turn on. This turns off all systems that do not require the engine's start, such as the dome lights and some of the 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. The ignition switch must be able to unlock the cylinder that controls your ignition before it can do this. This is accomplished electronically, by acknowledging the key cut. The lock and unlock functions in your ignition switch are handled by a small tumbler, which must match a unique cut on your key. The tumbler has different ramps on each side and, when you insert your key it pushes it into those different ramps to activate the system in the most appropriate manner. The ignition switch is usually an unimportant component that goes by unnoticed until something goes wrong. It's important to replace it as soon as it seems to be failing, because it is responsible for all of the major systems in your car. Luckily professionals can easily replace your ignition switch and restore your car's full functionality. How does an ignition switch function? If your car has refused to start, it's likely that the ignition switch was the cause. An ignition switch is a type of electrical switch that completes a circuit to start your engine. It's part of the key cylinder in your car, or the ignition button on newer vehicles. It's a complicated system that must be functioning properly for your vehicle to start and operate properly. There are four different positions your ignition switch can be in: off, accessory, on and start. The off position blocks the power from reaching systems such as your radio or HVAC controls. The accessory position permits systems that do not require a significant amount of power, such as dashboard lights or the fuel pump's starting. The on position powers your starter, while the start position is where you turn your engine over in order to get it started. The ignition switch's inside contains a set of contacts that shut when you move the position. These contacts do not have a high current passing through them, but they act as relays to enable the functions to work. They are susceptible to wear and tear as they get older. They are also susceptible to failure due to aging or heat, or even heavy key chains that cause them to move and bend and eventually lead to the contacts disconnecting. Additionally the ignition switch comes with an electronic lock within it, which protects your vehicle when it's stationary. It is a safety measure designed to stop the theft of your vehicle. However, it could be impeded by defective internal parts. You might notice that your vehicle is taking longer to start than usual or doesn't start at all. All of these signs indicate that your ignition needs to be replaced. It's a crucial part of your car that you depend on to get where you'd like to get to. It is best to consult a professional to diagnose the issue as soon as possible to avoid further complications. How do I replace an ignition switch? When you start your vehicle the ignition switch supplies power to the charging, starting and ignition systems. In time, it could get worn down or corroded. This can cause a variety of problems such as difficulty starting your vehicle. If you have a defective ignition switch, it is recommended to replace it immediately to avoid any more issues. The process of replacing an ignition switch may vary based on the make and model of your vehicle. However, in most instances, the process is quite simple. First, you will need to remove the dashboard or cover of the steering column to gain access to the ignition switch. After removing the steering column or dashboard cover, locate it and pry away the ignition switch assembly. You will likely need to take off some screws too. You will then need to disconnect the switch's wires. Once you have disconnected the electrical connections, you can remove the ignition lock cylinder from the ignition switch. It is also necessary to remove the washers, if equipped. After you have removed the ignition switch and cylinder, you'll have to replace the switch. Make sure that you align the switch to the ignition cylinder properly. Once you've done this, you can reconnect all the wiring and test your ignition switch. If everything is functioning properly you can put back together your steering column, as well as the covers or panels you removed. In most cases, you'll need to get an additional key when replacing your ignition switch. This is because the old key will likely be damaged and not compatible with your new ignition switch. However, some older models of vehicles will be able to use the existing key with the new ignition switch as long as the key is in good working order. Consult a professional if you are unsure whether you need a new ignition switch or key. A locksmith or dealership service shop can to tell you the truth. Alternatively, you can ask your auto parts shop to supply you with a new key, that will work with the new ignition switch. Do I need a new key? If your car is an older model with an ordinary key, you are able to replace the ignition switch without needing to get a new key. However, a lot of modern vehicles feature security systems that are specifically designed and use more complex electronic designs. ignition lock repair needs to be used in conjunction with a new key to work properly. In this situation it is important to determine whether the cost of a new key is covered under the warranty or insurance coverage of your car. You should only try to change an ignition switch when you have the correct tools for the task. It is extremely easy to cause more damage trying to force the stuck ignition or key out of its lock than you would by hiring a professional locksmith to do the job. You could be left with costly repair costs or worse, the vehicle could catch fire if you try to do it yourself. If the ignition switch is damaged, the most common issue is that the car won't start. This is typically due to a problem with the transponder chip, or the ignition switch itself. If either one of these is not working properly, the vehicle could be unable to start in certain positions. The anti-theft device could be activated. If your car isn't starting, you should bring it to an auto locksmith in the area for an inspection. They will be able to identify the issue and suggest the best solution. If they have the right tools and parts they will also be able to program your current key to work with the new ignition or cut the new one for you. You will need to take your vehicle to a dealer for this type replacement in the event that it has transponder or smart keys chip (also known as a proximity sensor-based key). The dealership will have to go through a relearning process to match the new key to the vehicle. This can be done at the shop or on the parking lot.