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What Happens When Your Car Ignition Switch Fails? The ignition switch in your vehicle is responsible for a number of systems including the engine. It's also a common source of problems, such as a hard-to-turn key or dashboard lights that flicker. The ignition switch works by translating key movements into positions that trigger various functions. This article will explain the fundamentals of ignition switches and how to troubleshoot or fix them. The Ignition Position It might be one of the least-known automobile parts in the present, but the ignition switch is essential to the operation of your car. This small part allows you to turn on your engine, and also provides power to other systems in your vehicle, such as the radio, lights and more. This is why it's vital to keep your ignition switch and what happens if it breaks. There are multiple types of ignition switches available on the market today, and they have different functions depending on their design. For instance, key operated switches use a tumbler with specially shaped keys to trigger electrical systems and begin the engine. This type of ignition is mounted in a different location from the cylinder of the lock and controlled by a mechanical linkage or connected to it. More modern ignition switches use electronic modules to transmit heavy current instead of traditional tumblers and keys. Whatever type of ignition switch you use in your car there are some typical issues that can happen. Most often these issues are the result of wear and tear or external forces. A heavy keychain, for example could put stress on the ignition switch every time it is inserted and removed. This can cause wear to the internals of the switch. Extreme temperature fluctuations can impact the materials and lubricants used in the ignition switch. This can lead to degrading over time. If you are experiencing these types of issues, it's time to call a professional for help. A malfunctioning ignition can cause serious consequences for your car and you must take care of any issues you spot as soon as possible. It is also possible to take preventative measures to reduce the likelihood of having to tackle these issues in the future. The Start Position The ignition switch in your car is a basic machine that can transform the way it functions. It turns on the engine and other systems with a simple turn of the switch or pushing an electronic switch. It is a vital element of your car that allows you to travel quickly and safely. It is, however, able to be prone to problems, just like any other machine. These issues can hinder you from starting your car but could also cause damage to other parts. Fortunately, you can avoid these issues with regular maintenance and by identifying the early warning indicators of ignition switch issues. Most ignition switches come with four positions that are lock (lock), the acc (acc) (lock), start (start) and accessory. The lock position stops the key from being removed and it is not possible to use accessories or crank the engine when the switch is in this position. The acc position, or accessory mode, provides power to accessories such as the radio while the engine isn't running. This mode can drain your battery, so be careful when using it. The start position is the one that drives everything that makes your engine run. This includes the gauges, sensors, and coils that are in your dashboard. This also triggers the spark plugs of your engine to start firing and generate combustion, which gets your car moving. If you're having trouble with this position, it may indicate a problem with the ignition switch. Multimeters can be used to test the function of your ignition switch. You can also check if the switch is working properly by placing your key in the ignition and turning the steering wheel left or right. If you find that the gears are hard to turn, or the ignition switch appears to be leaky, you must contact your local locksmith for assistance. A malfunctioning ignition switch could also cause problems when driving your car, as it makes it hard to turn the steering. This is a sign of an issue with the ignition switch that must be repaired, so it's recommended that you bring your vehicle to an expert when you notice any problems. The Stop Position Every circuit that receives electricity from the ignition switch will be shut off when the switch is in the “off” position. This includes the additional systems such as your radio as well as the dash lights and even some of your power seats. It also cuts the electrical power to the mechanical lock within the steering wheel so you can't turn the wheel when the vehicle is parked. If you try to start the engine when the key is in this position, it might stall immediately since that's when security systems kick into action. Typically the key is kept in this position when you are driving. This is so that you can control your auxiliary systems and convenience features while keeping the engine off. The ignition switch might require you to press a little before it goes in this position, based on the model and make of your vehicle. This is to ensure that it is recognizing the correct key and does not allow a random key to start the engine. You may experience different signs that your ignition switch is worn out. Common symptoms include the engine not starting and having trouble turning the key, or accessories or auxiliary functions that are suddenly failing to function. The ignition switch is a complex component and requires a skilled auto mechanic to replace it. To replace your ignition switch, first unplug the negative terminal of your battery. Remove any plastic pieces or covers that cover the ignition cylinder. Once you've gained access to the cylinder, loosen and slide the cable off the negative terminal. Check the owner's guide to find out where the battery is located and how to safely disconnect it. The position of the accessory The ignition switch could be one of the most insignificant parts in your vehicle, but it's crucial to the vehicle's function. It's also a frequent failure point and you must know what happens when the ignition switch fails and how to determine the cause, and how to fix it. G28 Car Keys don't think about the ignition switch until they realize it doesn't perform as it should. The switch is responsible for allowing almost every component of your car to operate and can also stop many problems from occurring. The switch is activated by the small cylinder when the key is put in. Modern ignition switches employ electronic modules instead of mechanical gears however, they do the same process of activating all of your vehicle's systems. In extreme instances, a defective ignition switch can cause the engine to overheat, and possibly catch fire. In your car's manual you'll find the accessory position (ACC) which allows you to switch on electrical devices such as your headlights, radios, and other accessories. These devices don't draw the huge current needed to start the engine because they draw power directly from your battery. It's a great place to listen music or use your other devices while driving. However, don't leave it running for too long. If the key in your car is hard to turn in the cylinder, or if it isn't able to start at any time, the ignition switch is likely to be malfunctioning. It can also be difficult to determine if the issue is related to the switch or if it's the key itself that is causing the issue. Look over the keys for signs of scratches and scratches. Also, check if the key is stuck in the ignition. You can also examine the wires inside the ignition switch. There is usually a red, brown and pink wire however only the red is usually hot when the switch is in the accessory position. If the wire is not powered the ignition switch could be broken. If this is the situation you should consult an expert.