What Happens When Your Car Ignition Switch Fails?
The ignition switch in your car is responsible for powering your car's engine and many other systems. It's also a frequent cause of problems, such as keys that are difficult to turn or the dashboard lights that flicker.
The ignition switch works by translating key movements into positions that trigger various functions. This article explains the fundamentals of ignition switches and how to fix or troubleshoot them.
The Ignition Position
The ignition switch is among the most crucial car parts that is often neglected. This tiny component allows you to turn on your engine and provides power to other systems in your vehicle, such as the radio, lights, and more. This is why it's important to keep your ignition switch in good working order, and why you should be aware of what happens if it goes wrong.
There are multiple types of ignition switches available on the market today, and they each perform a different function in accordance with their design. For instance, traditional key operated switches utilize the tumbler, which is specially designed with keys to turn on electrical systems and begin the engine. This type of ignition is mounted in a different location from the lock cylinder, and operated with a mechanical linkage, or linked to it. Modern ignition switches utilize electronic modules to carry a heavy current instead of traditional tumblers and keys.
No matter what kind of ignition switch you have in your vehicle however, there are some typical issues that can happen. These issues are typically caused by wear and tear, or external influences. For instance, a heavy keychain can cause strain on the ignition switch each time it is removed and inserted and causing wear to its internals. Additionally, extreme temperature fluctuations can impact the lubricants and materials inside the ignition switch, causing degradation over time.
If you experience these kinds of issues, it's probably time to contact a professional for help. A malfunctioning ignition can cause grave consequences for your vehicle and you must address any issues you notice promptly. You can also take preventative steps to lessen the chance that you will have to face this issue in the future.
The Start Position
The ignition switch in your car is a basic machine that can make a huge difference to the way it operates. With a simple flick of a switch or push of an button, it can start your engine as well as numerous other systems. It is an essential element of your vehicle that enables you to drive quickly and safely. But, just like any other piece of machinery, it can experience problems periodically. These issues can not just stop your vehicle from starting, but also damage other components. Fortunately, you can avoid these issues by performing regular maintenance and by identifying early warning symptoms of problems with the ignition switch.
Most ignition switches have four positions: lock (lock), acc (acc) start (start) and accessory. The lock position prevents removing the key and you can't use accessories or crank your engine if the switch is in that position. The acc position, or accessory mode, provides power to other accessories like radios even when the engine is not in operation. This mode could drain your battery, so you should use it sparingly.
The starting point is where your engine runs. This includes the gauges, sensors, and coils that are in your dashboard. This position also triggers the engine's spark plugs to start firing and generate combustion, which is what gets your car moving. If you're having difficulty in this position the ignition switch could be malfunctioning.
Multimeters can be used to test the operation of your ignition switch. You can also test the switch by turning the steering wheel left or right while holding the ignition key. If you notice that the wheels are difficult to turn or the ignition switch is leaking, you should call your local locksmith.
A bad ignition switch can also make it difficult to drive your vehicle as it becomes difficult to turn the steering wheel. This is a sign of an issue with the ignition switch that has to be repaired, so it is recommended to bring your vehicle to a professional immediately if you notice any issues.
The Stop Position
When the key is in this position, all circuits that receive power from the ignition switch are turned off. This includes other systems that are connected to it, such as your radio and dash lights, as well as even some of your power seats. It also cuts the electrical power to the mechanical lock inside the steering wheel so you aren't able to turn the wheel when the car is in a parking spot. If you attempt to start the engine when the key is in this position, it may stop immediately because that's when the security systems kick in.
Typically the key is kept in this position while 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. Depending on the brand and model of your vehicle the ignition switch could require you to press in just a little before it is in this position. This is done to ensure it recognizes the right key and doesn't allow a random key to start the engine.
If the ignition switch in your car is showing signs of wear and tear, you may notice a variety. Some of the most common symptoms are the engine not starting, difficulty turning the key, or sudden failure of accessories or auxiliary features. The ignition switch is a specialized component that requires professional replacement by an experienced auto mechanic.
To replace your ignition switch, first remove the negative terminal from the battery. Remove any plastic pieces or covers that cover the ignition cylinder. Once you have gained access then loosen and slide the cable off the negative terminal. Refer to your owner's manual for instructions on where the battery is and how to safely disconnect it.
The Accessory Position
The ignition switch is among the most important parts in your vehicle. It's tiny, but it's essential to its operation. It's also a frequent point of failure and you must know what happens when your ignition switch fails and how to identify it and repair it.
The majority of people don't consider the ignition switch until it doesn't perform as it should. The switch is the one that allows the majority of the components in your car to operate and prevent many issues from occurring. The key is put into a small cylinder and the switch turns it on to allow power to flow to other systems.
Modern ignition switches utilize electronic modules instead of mechanical gears, however, they do the same process of activating all of your car's systems. In the most extreme instances, a damaged switch could cause your engine to overheat, or even set fire to the vehicle.
In your car's manual you will discover the accessory position (ACC) which allows you to switch on electrical devices such as your headlights, radios and other accessories. These don't use any of the massive current that would be required to start your engine, since they draw power directly from the battery. It's an excellent place to play music or use other devices while driving. But don't leave it running for too long.
The ignition switch could be faulty if your car key isn't easy to turn or isn't turning at all. It can be difficult to determine if the problem is caused by the switch or the key. Look at the key for indications of wear and tear like scratches or dents and determine if it's stuck in the ignition cylinder. You can also examine the wiring inside the ignition switch. If the switch is in accessory mode, there is usually three wires: pink, brown, and red wire. However, only the red wire is normally hot. If car ignition switch is not powered the ignition switch could be damaged. If this is the situation seek out an expert.