How to Repair Car Key Fobs
Key fobs can be damaged even if we use them frequently. They can be destroyed in various ways.
While the most common problem is the battery being dead however, other issues could be more serious. The majority of these issues can be solved with a quick fix at home.
Dead Battery
A dead battery is likely the most frequent reason the car key fob stop functioning. Fob batteries drain quickly, particularly if they're exposed to extreme temperatures, humidity, or water. Keep an extra battery in your wallet in case you require it.
The LED light will typically stop blinking when the battery in the car key fob is low. It is also possible that the fob won't function from the same distance as it used to. In this scenario it might be necessary to reprogram the key fob or replace it altogether.
It is easy to replace a car keyfob battery. First, determine what type of battery is used. The type of battery should be engraved on the side of the fob. If you're not sure, an easy Google search can help. Once you've found the battery type, open the key fob near the seam. You'll need small flathead screwdrivers or even your fingernail to break the two halves. Then, take out the battery that was removed and replace it with an alternative one in its place. Make sure to insert the new battery with the positive (+) side facing towards the buttons in the fob.
Some drivers may not be aware the fob is dead until they try to lock or unlock their vehicle and the buttons aren't responding. In some instances this problem can be resolved by reprogramming your fob, however, this can be expensive and time-consuming. Another option is to contact roadside assistance and ask them to jump your vehicle and get you back on the road.
If you've tried all of these options but your car won't start then it's time for a professional. A trained technician can determine whether your car's computer system needs reprogramming or if the fob requires an upgrade in battery. They may also recommend an auto repair shop that can replace the fob that you use to access your car. In the end, though it is not always the case that a new fob is the most effective solution.
Damaged Circuit Board
The key fob isn't impervious to destruction, but it can withstand a lot of physical harm. The battery, the circuit board buttons, and other components all suffer their fair amount of wear and tear over the course of time It is therefore essential to be on guard and take care of them to ensure that your car key fob operating well.
Make sure that the battery still functioning in your key fob. Replace the battery to determine if it resolves the issue. If not, you may have to remove the key fob and clean the contact surfaces. It can be difficult to open certain key fobs because they don't have an easy-release mechanism. You could damage your fob by trying break it. You can purchase a special tool to open your key fob, but you should always follow the manufacturer's instructions to avoid damaging it.
A damaged or corrupted key circuit board for the fob is another frequent issue. This can be caused by a number of things, such as moisture or dirt that gets into the battery compartment software problems or even an unintentional firmware update. If your key fob is not working, you may want to consider getting it replaced. This can be done by a locksmith that specializes in this kind of work.
Radio interference is another possibility. It could happen when you have other wireless devices around that transmit at the same frequency, for example, radar detectors or home security systems. If this is the case, check with the other device manufacturers to ensure that your key fob isn't affected by their signals.
It's also possible that your key fob is equipped with a bad switch or other electrical component that must be replaced. There are online guides that will help you fix this yourself. Be cautious when doing this, however, because the circuit board inside your key fob is small and is prone to breaking if handled with care. If you're doing it yourself, be sure to make use of an SMT switch that is of high-quality and solder the switch in the correct position.
Worn Out Buttons
Car key fobs are susceptible to a lot wear and tear. They are more prone to being dropped and spend a lot of time being jostled in your purse or pocket. The constant jostling can cause the buttons to wear out or become stuck. When this happens, a simple adjustment may be all it takes to make it work again.
Most modern key fobs come with sensors on them that tell if they've been pressed. This is because they reduce the possibility of someone taking your vehicle. If the buttons on your key fob aren't responding when you press them, they're worn out and should be replaced.
Key fobs also contain a circuit board inside them that sends signals to the car. These signals include commands to unlock and lock your car, as well as commands to start your engine. If your internal circuit board is damaged then the key fob you have may not allow you to unlock your car or start the engine. Most of the time, this kind of damage is caused by water, blunt force or something that scratches the circuit board.
If you're having to press the buttons more than normal to get them to function the key fob buttons are wearing out. Your fob could be unable to send an alert to your car or have a smaller range.
If you're unable unlock your key fob, unlock or start your car, you need to find a locksmith near you immediately. They'll be able determine whether the key fob is damaged or the ignition cylinder has worn down.
Luckily, most key fob issues in cars aren't too serious or complex. Keep an extra key fob in your vehicle always in case you end up being shocked by a malfunctioning device. This will ensure that you're never left stranded somewhere due to the loss or malfunction of your key. Of course, if you do happen to lose your car key spare, a locksmith can help change the key to ensure it is compatible with the ignition of your car. They'll also be able repair any internal damage that may have been caused to your key fob.
Broken Case
The case of the key fob does more than just shield the buttons and batteries. The case also houses the circuitry that does all the electrical magic when you press a key fob button. This board takes the signal from your key fob and sends it to your car.
If this board is damaged or dead, your key fob won't be able to function. Sometimes a dead key fob can be reprogrammed, which is something that your local auto locksmith or the dealership can help you with.
Another reason your key fob might not be working is because the batteries are dead. This is a quick solution that can be done at home by replacing the battery. You can get the replacement battery from the local auto parts store or online. These batteries aren't just for key fobs.
There are a variety of ways to open up the key fob and go inside it, depending on the type. You can determine the type of battery your key fob is using by conducting a quick online search. From there, repair car key can purchase an alternative and then simply pop the old one out and put the new one in.
When fixing a damaged key fob, the primary concern is not to damage the circuit or buttons in any way. Trying to pry apart a key fob with an edge that is sharp like screwdrivers can break the case or damage the plastic. Luckily, a replacement case is inexpensive and you can buy an entire fob with the electronics from eBay or Amazon for less than $40.
If your key fob won't work, you should check if you've damaged the circuit board or the batteries. If this isn't the case, you can have it repaired quickly and inexpensively by an expert. If not, it may be time to replace the fob. Make sure to verify the warranty of any fob replacement or used that you purchase online.