What Happens When Your Car Ignition Switch Fails?
A car ignition switch is responsible for powering your car's engine, among other systems. It's also a common source of problems, such as keys that are difficult to turn or dashboard lights that flicker.
The ignition switch functions by translating key movements into positions that trigger a variety of functions. This article explains the fundamentals of ignition switches and how to troubleshoot or fix them.
The Ignition Position
The ignition switch is among the most crucial car parts but it is often ignored. This small component allows you to turn the engine on and provide electricity to all the other systems of your car, including things like the radio lights, radio, and more. This is why it's important to keep your ignition switch in good shape and also why you must be aware of what to expect if it malfunctions.
There are a myriad of types of ignition switches on the market today. car ignition lock perform slightly differently based on their design. Traditional key operated switches, like one, utilize a tumbler as well as specially designed keys to start the engine and then activate electrical systems. This type of ignition switch can either be connected to the lock cylinder or removed from it and operated via mechanical linkage. Modern ignition switches employ electronic modules to carry a heavy current instead of the traditional tumblers and keys.
No matter what kind of ignition switch you have in your vehicle however, there are some common issues that can arise. These issues are typically caused by wear and tear, or other external influences. A heavy keychain, for example could put stress on the ignition switch each time it is inserted and then removed. This can cause wear to the internals of the switch. Extreme temperature changes can also impact the materials and lubricants used in the ignition switch. This leads to the degradation of the switch over time.
It's time to contact a professional if you notice any of these problems. Ignition failure can have grave consequences for your vehicle, so you should deal with any issues that you observe promptly. You can also take preventative measures to reduce the likelihood that you will have to deal with this issue in the future.
The Start Position
An ignition switch for cars is a small piece of machinery that can make an enormous difference in the way your car runs. With a simple flick of a switch or a push of the button, it will start your engine and countless other systems. It's an essential part of your vehicle that enables you to go on the road in a hurry and in a safe manner. It can, however, be prone to problems as with any other vehicle. These issues can not only prevent your vehicle from starting, but also cause damage to other parts. You can avoid these problems by performing regular car maintenance, and recognizing early warning signs of ignition switch issues.
The majority of ignition switches are constructed with four positions: lock start, acc, and accessory. The lock position prevents the key from being removed and it's impossible to use accessories or crank the engine while the switch is in this position. The accessory mode or acc position supplies power to accessories such as the radio when the engine is off. This mode can drain your battery, so you should be careful when using it.
The starting position is where your engine runs. This includes the sensors, coils and gauges on your dash. This position also triggers the spark plugs of your engine to start firing and generate combustion, which is what gets your vehicle moving. If you're having difficulty with this position, it could be a sign of a problem with your ignition switch.
You can test the functionality of your ignition switch by using a multimeter to check continuity. You can also test the switch by turning the steering wheel left or right while keeping the ignition key. If you find that the gears are difficult to turn, or if the ignition switch is leaky, you must contact your locksmith in your area for assistance.
A bad ignition switch can also make it difficult to drive your car by making it hard to turn the steering. This is a sign that there's an issue with the ignition switch that needs to be repaired, so it's best to bring your vehicle to a professional as soon as you notice any issues.
The Stop Position
When the key is in this position the circuits that receive the power from the ignition switch are turned off. This includes the other systems that are connected to it, such as your radio and dash lights, as well as even your power seats. It also cuts electrical power to the mechanical lock within the steering wheel so that you can't turn the wheel when the vehicle is parked. If you try to start the engine while the key is in this position, it might stop immediately because that's when the anti-theft system kicks in.
Typically the key is kept in this position when you are driving. This is because it lets you to control your auxiliary and convenience systems while keeping the engine off and out of reach. Based on the make and model of your vehicle the ignition switch could require you to press just a little before it goes into this position. This is to ensure it can recognize the correct key and will not let a random key start the engine.
You may experience different signs that your ignition switch is worn out. Common symptoms include the engine refusing to start and having trouble turning the key, and other accessories or auxiliary functions that are suddenly failing to work. The ignition switch is a complicated component that requires a professional auto mechanic to replace it.
To replace the ignition switch, you'll first need to disconnect the negative terminal from your battery. Remove any plastic pieces or covers that cover the ignition cylinder. Once you've gained access to the cylinder, loosen the bolt on the negative terminal and slide it off the cable. Consult your owner's guide for information on how to safely disconnect the battery and where it is located.
The accessory position
The ignition switch is among the most important parts in your vehicle. It's small, but it's crucial to the operation of your vehicle. It's also a typical failure point therefore you must be aware of what happens when the ignition switch fails and how to identify it, and how to repair it.
The ignition switch is often overlooked until it fails to function properly. The switch is crucial for the operation of nearly all components of your vehicle and can help prevent many issues. The switch activates the small cylinder when the key is put in.
Modern ignition switches are electronic modules, not mechanical gears. They do exactly the same thing, they trigger almost all of your vehicle's systems. In extreme cases a defective switch can cause your engine to overheat or cause the car to catch fire.
In the manual of your car, you'll discover the accessory position (ACC) which permits you to turn on electrical devices, such as your headlights, radios, and other accessories. These devices do not use the heavy current required to start the engine since they draw energy directly from your battery. This is the best location to listen to music or use other devices while driving, but make sure you don't keep it on for too long.
If the key in your car isn't turning in the cylinder, or if it isn't able to start at all the ignition switch likely to be malfunctioning. It can be difficult to determine if the problem is caused by the switch or the key. Check the key for indications of wear and tear such as dents or scratches and determine if it's stuck in the ignition cylinder. You can also check the wiring inside the ignition switch. When the key is in the accessory position there's usually three wires: pink, brown, and red wire. However only the red wire is typically hot. If the wire is not generating power, it could be the ignition switch that's broken. Consult a professional if this is the situation.