Why We Do We Love Car Ignition Switch (And You Should, Too!)

· 6 min read
Why We Do We Love Car Ignition Switch (And You Should, Too!)

Common Causes of Faulty Ignition Switches

Ignition switches provide the initial power to your car's accessories as well as the engine. They also determine whether your vehicle's key is in the on, accessory, or off position.

Keep spare keys, keepsakes, and other items on a chain separate from the car keys to avoid issues with the ignition switch. This will help reduce the mechanical stress on your key cylinder.

How the Ignition Switch Works

The ignition switch is the heart of your vehicle. The ignition switch is the first part you press to start your car, so you don't want it to malfunction. This is why it is essential to have your ignition switch repaired or replaced when you notice any signs of trouble, like problems starting or a pulsing sound.

The primary function of the ignition switch is to provide the power to other systems in your vehicle, including the radio as well as accessories and windows. The ignition switch is also responsible for activating the engine and starter motor when the key is turned to the 'on position.

To allow the ignition system to work it must have a spark that can ignite the air and fuel in the engine of your vehicle to begin. The ignition coil generates the spark by creating an electric field that surrounds the rotor while current passes through. The magnetic field is created when the rotor turns. This generates the ignition spark. This spark can turn the pistons of your engine, igniting the engine and causing it to start.

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 coil's windings and then through the points of the breaker. This creates magnetic fields that spin the rotor, and ignite the spark plugs of your car which then heat up the engine.

When the ignition switch is set to'start', the primary and secondary circuits are both closed. The electrical connection between terminals of the distributor cap and the rotor break when they turn. This will stop the secondary flow and completes the circuit. This causes the breaker points to close and produce a spark at the spark plug which will then fire the engine in a matter of seconds.

It is crucial to remember that the ignition switch is a delicate piece of machinery, and must not be subjected any force that is too strong when inserting or turning it. If you put too much pressure, the switch can fail, and you'll need a professional remove it for repair.

Common Ignition Switch Problems

It is important to maintain the ignition switch in good shape as it provides initial access to vehicle power. A malfunctioning switch can lead to many problems with your vehicle, making it difficult to drive or use your preferred accessories. Understanding  ignition cylinder repair  of ignition failure is the first step to finding and fixing your car's problems.

The most obvious sign of a problem with the ignition switch is when you are unable to turn the key to start your vehicle. Often, this means you have to move or attempt several times to get the key to turn. This is due to the wear and tear inside or other damage to the ignition switch that can be caused by a variety.

Heavy Keychains

When you insert the ignition key, a large keychain with a number of keys, key fobs and other accessories may put extra pressure on the switch. This could cause the ignition switch to overheat, speeding up the wear and tear on its internal components and causing degradation. Extreme temperatures and harsh environments can adversely affect the lubricants and materials in the ignition switch. This can speed up its degrading process over time. The environmental contaminants and moisture can affect the switches' internal components. This could lead to poor connectivity.

Manufacturing Defects

Certain ignition switches have flaws or design flaws which can lead to premature wear and damage. This could be due to poor quality materials, improper assembly, or other factors.

One customer brought their vehicle to our shop when the radio and dashboard light did not work. We found that the ignition switch was no longer providing power to the accessory. Since the ignition switch is supposed to provide power to the crank and accessory positions when it's activated this indicates that there is a problem with the switch.

The key may also cause issues with the ignition switch if it gets stuck in the. This is typically an indication that the switch for ignition is worn out or broken, and it will need to be replaced. A professional locksmith will employ tools like the hacksaw blade or piler to remove the key from the ignition.

Ignition Switch Replacement

The ignition switch transmits signals that activate a variety of vital vehicle systems. If it malfunctions it could stop your car from starting, and may cause damage to other electrical components as well. It is essential to replace it immediately if you spot any signs of trouble, like the key not being able to turn or not turning at all.

You can replace the switch yourself, but be careful. You'll be working with a very delicate piece of machinery and it's best to have an expert handle the task to ensure that you don't get stuck in traffic or cause a major accident.

If your switch is not functioning, it could be due to a worn out contact point or a bad connector. A long keyring or a heavy set of keys can wear down the cylinder, which causes the switch to become disconnected from the cylinder.

You'll notice that turning the key requires more force, and sometimes, nothing happens. This is a sign it's time to replace the ignition switch, however many people don't bother. They continue to try to jiggle their keys to start their vehicle.

Based on the vehicle's model and make, replacing the ignition switch can be straightforward or complicated. In the majority of instances technicians will remove the cover on the steering wheel and disconnect the ignition switch from the cylinder. The technician will then detach the switch that was previously installed and replace it with the new one. Before they finish, the mechanic will reconnect the electrical connections and then test the switch to ensure it's functioning properly.

Certain vehicles come with an anti-theft system that requires a particular key to start them, so the switch must be programmed to accept a brand new key when the switch is replaced. It's important to note that this isn't applicable to all vehicles, as even older models can be operated with any key that works, even if the ignition switch isn't functioning. Most modern cars require a "chipped key" to start them. The switch will also need to be replaced when the key fails.

Ignition Switch Repair

The ignition switch is responsible for switching on and off the electrical power supply to the starter, accessories and powertrain components in your vehicle. The ignition switch is the direct communication channel that delivers electricity to all of these components. If it fails, your car could lose power in numerous places. You should therefore pay attention to any signs that indicate your ignition switch may need repair or replacement.

When you have trouble turning the key in the ignition, it is an indication that the ignition switch is malfunctioning. If you're struggling to turn the key, it is a sign that the wafers inside the ignition switch have worn out. This could be due to frequent use or environmental factors like dust, dirt, or corrosion.

Another issue that is common is when your engine fails to start when you're driving. This is caused by the ignition not being able supply enough power to the engine. It can be very frustrating for drivers and could be risky. It's best to visit your local auto shop whenever you discover any issues with your ignition switch or lock cylinder.

Other signs that the ignition switch is going bad include relays for the accessory that aren't working, which is an indication that the switch can't send power to them. You might also notice that the dashboard lights are flickering.


If you think your ignition switch is damaged, the first step is to take off the trim around the steering wheel and dash. This will give you access to the ignition switch which is located on a round piece of equipment at the top of the steering column, or in the center console.

The screws that support the module need to be removed and the wire connectors will need to be loosened with the aid of a screwdriver. You can then take out the old ignition and replace it with a brand new one. Before assembling the vehicle, test the ignition switch by turning the key to ON and then START positions. Reconnect the battery and ensure that all components are working.