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Common Causes of Faulty Ignition Switches Ignition switches are the first source of power to your car's accessory and engine. They also determine whether your car's key is in the on, accessory, or off position. To avoid problems with your ignition switch, keep extra keys and other keepsakes on a separate chain from your car's key. This will reduce mechanical stress on the cylinder of your car's key. How the Ignition Switch works The ignition switch is at the core of your vehicle. It's the first thing you touch when you are getting ready to start your car, and the last thing you would want to malfunction. It is therefore crucial to repair the ignition switch or replaced as soon as there are any indications of trouble. The basic function of the ignition switch is to provide the initial power to other systems in your vehicle, including radio, accessories, and windows. The ignition switch is responsible for turning on the engine and starter motor when the key is turned to the “on' position. To allow the ignition system to function there must be spark that can ignite the air and fuel in the engine to cause it to start. The ignition coil generates sparks by creating a magnetic field that surrounds the rotor while the current moves through. The magnetic field is created as the rotor rotates. This creates the ignition spark. The spark will change the pistons of your engine, sparking them and triggering it. The ignition switch controls the electrical current running through your primary and secondary circuits. When the switch is in the “on” position, the battery will send low voltage current through the primary windings of your ignition coil and then through the breakers. This creates magnetic fields that spin the rotor and ignite your car's spark plugs, which will then fire up the engine. When the ignition switch is turned to “start” the primary and secondary circuits will be closed. The electrical connection between terminals of the distributor cap and the rotor is broken as they spin. This stops the secondary flow, and completes the circuit. This causes the breaker points to close and produce sparks at the spark plug which will then fire the engine in just a few seconds. Be aware that the ignition switch can be a delicate piece of equipment that shouldn't be subjected to excessive force when inserted or turned. If you use excessive pressure, the switch could break and you'll require a professional to take it off for repair. Common Ignition Switch Problems The ignition switch is the initial access to vehicle power, which is why it's vital to maintain it in good working order. A malfunctioning switch can lead to numerous vehicle malfunctions that make it difficult to drive or use your preferred accessories. Understanding the most common reasons for ignition failure is a crucial first step in identifying and fixing your vehicle's issues. The most obvious sign of a problem with the ignition switch is when you are unable to turn the key to start your vehicle. This could mean you have to move the key or turn it multiple times. This is a result of the internal wear and tear or other damage to the ignition switch, which can be caused by a variety of factors. car ignition lock When you insert the ignition key, a large keychain containing many keys, key fobs and other accessories can put extra pressure on the switch. This can cause the switch to overheat and accelerate internal wear and degradation. Extreme temperatures and harsh climates can adversely affect the materials and lubricants inside the ignition switch. This can accelerate its degradation over time. The environmental contaminants and moisture can also affect the switches internal components. This can lead to poor connectivity. Manufacturing Defects Some ignition switches may be prone to flaws or defects in their design, which can result in premature wear and damage. This can occur due to poor quality materials, assembly errors or other issues. One customer brought their car to our shop when the radio and dashboard light had stopped working. We found that the ignition switch was not longer supplied power to the accessories. This is an issue because the ignition switch should supply power to the accessory's position and crank position when it's turned on. The key could also cause issues with the ignition switch if it gets stuck inside. This is an indication of a worn-out or damaged ignition switch which needs to be replaced. A professional locksmith will use tools such as a piler or hacksaw blade to remove the ignition key. Ignition Switch Replacement The ignition switch sends signals to activate important vehicle systems. If it is damaged it could stop your vehicle from starting and may affect other electrical components too. It is crucial to get it replaced as soon as you notice any signs of trouble, such as the key getting hard to turn or not turning at all. You can typically replace the switch by yourself, but you should be cautious. It is essential to employ a professional to handle this delicate job. You do not want to get stuck in traffic or cause an accident. If your switch is not functioning, it could be due to a worn-out contact point or a defective connector. A long keyring, or keys that are heavy, can cause wear on the cylinder, which causes the switch to disconnect from the cylinder. You'll notice that turning the key requires more force and sometimes, nothing happens. This is a sign that it's time for an replacement however, most people overlook it and keep trying to turn the key to start their cars. Depending on the make and model of your vehicle, changing the ignition switch could be simple or difficult. In the majority of cases the technician will take off the steering wheel cover and disconnect the ignition switch from the cylinder. The technician will then detach the old switch and replace it with the new one. The mechanic will then test the switch and then reconnect the electrical connections before closing. Certain vehicles have an anti-theft system that requires keys to turn the car on. The switch will have to be programmed to accept the new key after it is replaced. This does not apply to all cars, since older models can still be started by using an ordinary key in the event that the ignition switch fails. However, the majority of modern vehicles require a 'chipped' key in order to start them. Therefore, the switch must be replaced when the key does too. Ignition Switch Repair The ignition switch is responsible of turning the electrical power off and on to the starter and other accessories as well as the powertrain components of your vehicle. The ignition switch is the direct communication line for sending power to all these components. If it fails, your vehicle can lose power in many places. This is why you should be attentive to indicators that indicate the ignition switch requires repair or replacement. When you have trouble turning the ignition key it's a sign that your ignition switch has failed. If you are having trouble turning the key, the wafers within the ignition switch might be worn out. This can occur due to frequent use or environmental factors such as dust, dirt, or corrosion. A frequent issue is the engine stalling while driving. This is caused by the ignition not being able to provide enough power to the engine. It can be a frustrating experience for drivers and even dangerous. You should visit your local auto repair shop as soon you discover any issues with your ignition switch or the locking cylinder. Other symptoms that the ignition switch is going bad include the relays that connect to the accessory not working, which is a sign that the switch isn't sending power to them. It is also possible to notice the dashboard lights flickering. If you think your ignition switch may be bad take off the trim around the dash and the steering wheel. It is now possible to access the ignition switch, which is located on a circular panel that is located at the top or center of the steering wheel. You'll need to remove the screws that keep the module in place and then loosen the wire connectors with a screwdriver or other tool. You can then take out the old ignition and replace it with a new one. Before assembling the car check the ignition switch by turning the key to ON and START positions. You should also re-connect the battery and ensure that your accessories are working.