Common Causes of Faulty Ignition Switches
Ignition switches supply the initial power to your car's accessory and engine. They also determine whether the key in your car is in the on, accessory, or off position.
To avoid ignition switch problems, keep extra keys and other keepsakes on an additional chain separate from the car's key. This will lessen the mechanical strain on the cylinder of your key.
How the Ignition Switch Works
The ignition switch is at the core of your vehicle. It's the first thing you'll touch when you are getting ready to start your car and the last thing you want to be damaged. This is why it is important to have your ignition switch repaired or replaced when you begin to notice signs of trouble, like difficulty getting started or a pulsing motor.
The primary function of the ignition switch is to provide electricity to other systems of your vehicle like the radio as well as accessories and windows. The ignition switch also activates the engine and starter motor when the key is in the "on" position.
The ignition system has to function because it requires a spark to ignite the air and fuel in your car to begin. The ignition coil generates sparks by creating an electric field that surrounds the rotor while the current moves through. The magnetic field is created when the rotor rotates. This generates the ignition spark. The spark will change the pistons of your engine, sparking them and starting it.
The ignition switch controls electrical current that flows through the secondary and primary circuits of your ignition system. When the switch is set to the 'on' position, the battery sends low voltage current through the primary windings of your ignition coil and then through the points of the breaker. This creates an electric field that could spin the rotor, and ignite your car's spark plugs, which will then fire up the engine.
When the ignition switch is set on "start" the primary and secondary circuits will be closed. When the distributor and rotor cap terminals rotate, the electrical contact between them breaks and the secondary flow and completes the primary circuit. The breaker points are able to close and create a spark at the spark plug, which then ignites the engine in a matter of seconds.
It is essential to keep in mind that the ignition switch is a delicate piece machinery and should not be subjected to any force that is too strong when inserting it or turning it. If you exert too excessive force, the switch may break and you'll need an expert to remove it to make repairs.
Common Ignition switch issues
The ignition switch is the initial access to vehicle power, therefore it's crucial to ensure it's in good working order. A malfunctioning switch can lead to many problems with your vehicle that make it difficult to drive or use your preferred accessories. Understanding the common causes of malfunctioning ignition switches is the first step to identifying and addressing your vehicle's issues.
A clear sign of a problem with the ignition switch is if you are having difficulty turning the key to start your car. This can mean that you need to jiggle the key or turn it several times. This is due to the wear and tear on the internal circuit or other issues with the ignition switch, which can be caused by many factors.
Heavy Keychains
Carrying a heavy keychain with numerous keys, key fobs and other accessories can cause extra stress on the ignition switch each time you insert the key. This could cause the switch to overheat and accelerate its internal wear and degradation. Extreme temperatures and harsh climates 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 can lead to poor connectivity.
Manufacturing Defects
Certain ignition switches can suffer from defects or flaws in their design, resulting in premature wear and damage. This can occur due to poor quality components, faulty assembly or other issues.
A customer once brought their vehicle to our shop because the radio and dashboard lights had stopped functioning. We discovered that the ignition switch was not providing power to the accessories. Since the ignition switch is only supposed to provide power to the crank and accessory positions when it's activated this could be a sign of an issue with the switch.
The key can also cause problems for the ignition switch if it gets stuck in there. This is typically an indication that the ignition switch has damaged or worn out, and it will need to be replaced. ignition lock repair services will use tools like the hacksaw blade or piler to remove the ignition key.
Ignition Switch Replacement
The ignition switch sends signals to activate important car systems. It could cause your car to stop starting and impact other electrical components. It is recommended to replace it as soon as you can should you spot any indications that the key isn't working properly.
You can usually replace the switch yourself, however you must be cautious. It's important to hire a professional to handle this delicate job. You don't want to be stuck in traffic or cause an accident.
If your switch is not working, it's likely because of an aging contact point or a poor connection. A long or heavy keyring may also wear down the switch and cylinder and cause it to disconnect from the cylinder.
If the ignition switch is malfunctioning, you'll find that it takes more force to turn the key, and, often, nothing happens when you do. This is a sign it's time to replace it, but most people ignore it and keep trying to jiggle the ignition switch to turn on their car.
Depending on the model and make, replacing the ignition switch can be straightforward or complex. In the majority of instances, a technician must take off the cover for the steering column and disconnect the switch from the cylinder. The technician will then detach the switch from the previous one and replace it with the new one. After that the mechanic will re-connect the electrical connections and then test the switch to ensure it's functioning correctly.
Some vehicles are equipped with an anti-theft system that requires a special key to activate it, so the switch needs to be programmed to accept a brand new key when the switch is replaced. This does not apply to all cars, since older models can be started using an ordinary key when the ignition switch is not working. However, the majority of modern cars require a 'chipped' key in order to start them. Therefore, the switch will need replacing as the key wears out.
Ignition Switch Repair
The ignition switch is responsible to turn off and on electrical power to the starter, accessories and powertrain components in your vehicle. Since it is the main line of communication for sending power to these parts, if the ignition switch fails, it could cause your car to lose power in a variety of places. It is therefore important to be aware of any indications that suggest that your ignition switch might need repair or replacement.
When you have trouble turning the ignition key it's a sign that the ignition switch is malfunctioning. If you're having difficulty turning the key, the wafers inside the ignition switch could be worn out. This could be due to the use of the switch over time or environmental factors like dirt, dust, and corrosion.
Another issue that is common is when your engine fails to start when you're driving. This is due to the ignition not being able supply enough power to the engine. It can be a frustrating experience for drivers and could be dangerous. You should visit your local auto repair shop as soon you spot any problems with your ignition switch or locking cylinder.
The relays for the accessory aren't working too this is a sign that the ignition switch has failed. You might also notice that the dashboard lights flickering.
If you suspect your ignition switch might be defective take off the trim around the dash and the steering wheel. It is now possible to access the ignition switch that is located on a round panel that is located at the top or center of the steering wheel.
The screws that hold the module must be removed and the wire connectors need to be loosen with a screwdriver. Then, you can remove the old ignition and replace it with a brand new one. Before reassembling your car test the ignition switch by turning the key to ON and START positions. Re-connect the battery, and make sure that all accessories are working.