How to Fix Car Ignition Problems
The car will not start unless the switch sends an electrical signal to the starter. Normal wear and tear over time could cause the switch malfunction.
You can remove the steering column trim with specially designed tools to access your ignition cylinder module. Check the repair manual to get guidance on how to do this properly.
1. Make sure you check the Switch
A defective switch is one of the most frequent ignition problems. It controls the time when relays are activated and deactivated by acting as bridge. It is less likely to fail because it doesn't channel full power of devices like the starter. The switch could still be damaged or damaged or corroded.
One sign of a bad switch is a difficulty turning the key. This can be caused by many things such as incorrectly inserting the key or deteriorating the mechanism over time. It's also common for people to mistake their keys to their car with another's, which could result in mechanical damage.
If the switch isn't functioning there are some things you can try before calling a locksmith. First, you'll want to ensure that the battery is charged and that there aren't any other electrical issues in the system. It is also important to test the voltage of each component to see if they're supplying adequate power. Once you've done these steps, it's now time to start troubleshooting.
The ignition switch is simple to replace. It is connected to the ignition module, which is a round piece of equipment that connects everything. To replace it, you'll need a flathead screwdriver, and something that is long enough to push the pin inside. This can be anything from a paintbrush handle to a kabob skewer, but you should stay clear of any brittle material that could break within the hole.
If you're ready for the work, you'll need to take off any trim pieces covering the area around the ignition switch. Once you've done this take off and loosen any screws that keep the switch in place, and then carefully pull it out. Depending on the model, you might need to disconnect any cables connected to it. If you have an instruction manual for your vehicle, this will tell you exactly how to do it.
It is recommended to have the ignition switch replaced by professionals when it's not working. It can be difficult to replace the ignition switch without disabling the steering column. This could result in an unintentional airbag deployment in the event that you don't do it correctly. It is best to let your local locksmith take care of this.
2. Check the Wire
If you're unable to turn the ignition key or your car won't start, the issue could be related to any of the parts of your car's ignition system. Understanding how the ignition system functions will help you identify problems and make the correct repairs.
The ignition switch is a low-voltage multi-pole electrical switch that is operated by a key. It has four positions: off run, accessory, and "lock." When the switch is locked (which is typically indicated by an red light) the ignition circuit is activated and it is inaccessible to start your vehicle.
To determine whether the ignition switch is damaged or if the ignition coil itself is faulty, you'll have to conduct an electrical test using an voltage meter. The voltmeter should read approximately 12.6 volts when the ignition switch is in the run position. If the voltage falls below that it indicates that there is an open circuit within the system. does a new ignition switch require a new key could be at the battery, the solenoid or even the ignition coil itself.
Disconnect the electrical connector so that it does not interfere with the test. Then you should set the voltmeter in the continuity or resistance mode and place one lead on one of the terminals on the ignition switch. The other lead should be connected to the positive terminal of the battery. If the voltmeter reads "open" or does not register any voltage, it is recommended to replace the switch.
Use a brand new ignition key and a top-quality ignition cylinder when replacing the switch to ensure that your vehicle runs and starts properly. Also, when replacing the ignition switch, you must be careful not to strike the ignition cylinder pins with your tools, or they'll get stuck and your engine will not start. In certain vehicles, you'll need to remove the steering column and the gear selector to access the ignition cylinder. This can be difficult and isn't recommended until you have an owner’s guideline that states it's safe. Otherwise serious damage to the steering column and shifting mechanism is likely.
3. Check the Cylinder
If you've tried the battery, the wiring, and the ignition switch, but still cannot get your car started It could be time to check the cylinder. It's the part that holds your key and is connected to the lock on the steering wheel to ensure that thieves can't steer the car without the key.
You may be noticing that your key does not turn if the cylinder has worn out. The pins of the cylinder can get stuck as they adapt to the shape of your key. This could cause your vehicle to not start. The cylinder could also be sloppy. A tap using the tackhammer can aid. Be careful not mixing the springs, and ensure that the key is correctly installed.
Another indication that your cylinder is failing is when you need to jiggle the key and test it in various positions before it starts. This is a bad sign and must be addressed immediately, since it will only worsen over time.
To check the cylinder you must remove the cover for the steering wheel and disconnect the battery. You'll then be able pull out the old ignition switch and the metal ignition cylinder. If you don't have an extra switch, you may be able to take the original ignition cylinder and switch to locksmiths for reuse so long as they're in good condition. After replacing the switch and cylinder be sure to reconnect the wiring harness, secure it in place and reattach any covers, or panels that you have removed.
4. Check the Spark Plugs
The spark plug is the ignition system's final link. If it fails it will stop the engine from running. This could take the form of your car not starting at all, or it could start but then run poorly. In either case, it is likely that one or more factors are hindering or blocking electrical current from crossing spark plug gaps, which then ignites the mixture of fuel and air in your engine.
Be sure to use gloves and protective tools before you begin working with your spark plugs. Spark plugs can be very hot and cause serious injuries if they are touched with bare hands.
When a spark plug goes bad, you may observe that the edge of the central electrode has a light gray or brown residue on it. The electrode may also have an opaque coating. These deposits or fouling can prevent high-voltage electrical current from jumping across the gap of your spark plug, igniting an engine.
If you suspect your spark plugs could be the culprit, you could test them by remove them from the tube that is inside the ignition coil. You can do this by disconnecting the coil from the plug wire, and following the proper procedure for your car to remove the components that cover the spark plugs. After removing the plugs place them on a surface that is grounded, and start the engine. If they are working you should be able to see a strong blue spark at the tip of central electrode.
If you do not see a spark you have discovered the problem. The next step is to go back through the ignition chain, testing each part until you discover what's stopping the spark plugs from doing their job. It is important to keep in mind that all systems wear down and break over time and this is particularly applicable to ignition systems. Routine maintenance can help to slow down the process and prevent an issue at the worst possible time.