How to Repair Car Key Fobs
Even though we test them many a times keys aren't indestructible. They can actually break down in different ways.
Other issues can be more serious than a dead battery. Fortunately, the majority of these issues can be solved with a quick DIY fix at home.
Dead Battery
A dead battery is the main cause of a key fob not working. Fob batteries tend to drain quickly, especially when they are exposed to extreme heat or cold temperatures, humidity, or water. It's a good idea keep an additional fob battery in your wallet just in case.
The LED light will usually stop glowing when the battery in your car key fob is low. The key fob could also stop working at the same distance it used to. In this scenario the key fob might need to be programmed again or replaced altogether.
Fortunately, replacing the battery in a car key fob is simple. Find out the type of battery used. The type should be engraved on the side of the fob. If you are not sure, an easy Google search can help. The key fob can be opened across the seam after you have identified the battery type. You'll need an small screwdriver with a flat head or even your fingernail break the two halves. Remove the old battery, and replace it with a brand new one. Be sure to insert the new battery with the positive (+) side facing up toward the buttons on the fob.
Some drivers might not be aware that their fob is dead until they try to lock or unlock their car and the buttons don't respond. In some instances, this can be solved by reprogramming the fob, however, it can be costly and time-consuming. Another option is to contact roadside assistance and see if they can jump your car and get you back on the road.
If you've tried both solutions and your car still doesn't start, it's the right time to speak with an expert. A trained technician can tell whether your car's computer requires reconfiguring, or if your key fob simply needs a new battery. They can also recommend a reputable auto shop to replace your key fob. Sometimes an entirely new fob might be the best solution.
Damaged Circuit Board
A key fob is not indestructible, but it is able to be able to withstand a variety of physical damage. The battery, circuit board and buttons are all subject to wear and tear. It is important to take care of these components to ensure your key fob remains in good condition.
The most straightforward thing to do is that the battery in your key fob isn't depleted. Replace the battery to determine if it resolves the issue. If this doesn't work, you may need to open the fob and clean its contact surfaces. It is sometimes difficult to open some key fobs since they don't have an easy-release mechanism. You can cause damage to your fob by trying to break it. You can buy a special tool to open your key fob, but you should always follow the manufacturer's instructions to avoid damaging it.
A damaged or damaged key circuit board for the fob is another common problem. This could be due to various factors, including dirt or moisture getting into the battery compartment. key repair near me or even an accident firmware update could be the cause of this. If your key fob isn't working completely, you should think about having it reprogrammed with a locksmith that specializes in this type of work.
Radio interference is another possibility. This can occur when you have other wireless devices that transmit at the same frequency, like radar detectors or home security systems. If this is the case, check with the other manufacturers of the device to make sure that your key fob isn't being affected by their signals.
There may be a need to replace a switch or an electrical component inside your key fob. You can find online guides that will show you how to fix this yourself. You should be careful when doing this, however, because the circuit board that is inside your key fob is small and could easily break if handled roughly. If you do this yourself, be certain to use a top quality SMT switch and then solder it in place correctly.
Buttons that are worn out
Car key fobs are subject to a lot of wear and wear and tear. They are more prone to being dropped and spend a lot of time being jostled in your purse or pocket. Sometimes, this can cause buttons to wear out or stuck. If this happens, a simple adjustment may be all that's needed to get it working again.
Modern key fobs are equipped with sensors that detect when they have been hit. This is because they reduce the chance of someone else stealing your vehicle. If the buttons on your key fob don't respond when pressed, they are worn out and should be replaced.
The circuit board inside the key fob transmits signals to your car. These signals include commands to unlock and lock your car, and commands to start the engine. If your internal circuit board is damaged, then your key fob might not be able to unlock your vehicle or start the engine. Typically, this type of damage is caused by water, blunt force or a scratch on the circuit board.
If you have to press the buttons harder than usual in order to get them to function If this is the case, then your key fob's buttons are wearing out. Your fob could also stop sending 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 contact a locksmith near you immediately. They can determine if your key fob is damaged or the cylinder of your ignition is worn out.
Fortunately, most car keyfob issues aren't very complicated or even serious. The best way to avoid being surprised by an unresponsive key fob is to have an extra key in your possession at all times. This will ensure that you're never stuck in a bind because of an unreliable or lost key. If you do happen to lose your spare car key, a locksmith can help change the key so that it works with the ignition of your car. They'll also be able to repair any internal damage that's been caused to your key fob.
Broken Case
The case of your key fob is more than just a place to store the battery and buttons. The case also houses the circuitry that does all the electrical magic whenever you press a key fob button. This board receives the signal from your key fob, and then transmits it to your car.
The key fob won't function if the board is damaged. Sometimes, a dead key fob may need to be reset which is something that your local auto locksmith or dealership can help you with.
Batteries could be the reason the key fob's not working. The battery can be replaced at your home. The good news is that you can locate the replacement battery online or at your local auto parts store, since these batteries aren't exclusive to key fobs.
Depending on the kind of key fob, there is different ways to open it and access the insides. A quick search on the internet will show you which type of key fob you have and the type of battery it uses. You can then buy a new replacement and pop the old one out, and put the new one in.
If you are repairing a damaged key fob, the main concern is not to destroy the circuit or buttons more. If you attempt to pull away the key fob with an instrument like a screwdriver or any other sharp edge, it can crack the plastic or break the case. A replacement case isn't much and you can find an entire fob, including the electronic components on eBay or Amazon for under $40.
If your key fob does not function, make sure you have damaged the circuit board or batteries. If this is not the case, you can have it repaired quickly and inexpensively by an expert. Otherwise, it might be the time to purchase a replacement. Be sure to check the warranty of any replacement or used fobs purchased online.