How to Repair Car Key Fobs
Key fobs are susceptible to damage even if we use them a lot. They can actually be destroyed in various ways.
While the most common problem is a dead battery, other issues can be more serious. Most of these issues can be resolved with a quick fix at home.
Dead Battery
A dead battery is likely the most common reason a car key fob stops functioning. Fob batteries tend to drain quickly, especially if they are exposed to hot or humid temperatures, or water. Keep an extra battery in your wallet in case you need it.
The LED light will generally stop glowing when the battery in the car key fob is low. It's also possible that your key fob won't function from the same distance it used to. In this scenario the key fob might require reprogramming or replaced entirely.
It is easy to replace the battery in a car keyfob. First, find out what kind of battery is being used. car key repair cost of battery should be engraved on the back of the fob. If you're unsure, an easy Google search will help. Unlock the key fob along the seam after you've identified the type of battery. Make use of a flathead screwdriver or even your fingernail to separate the two halves. Then, remove the old battery and insert an alternative one in its place. Insert the new battery so that the positive (+) face is facing the buttons on the fob.
Some drivers may not realize their fob is dead until they try to lock or unlock their car and the buttons do not respond. In some instances this problem can be resolved by reprogramming the fob, however, it can be costly and time-consuming. You can also contact roadside assistance to find out whether they can start your car and get it back on the road.
If you've tried all three of these methods but your car won't start then it's time to call a professional. A certified technician can determine whether your car's computer system needs to be reprogrammed or if the fob needs an upgrade in battery. They can also recommend a reputable auto repair shop to replace your key fob. Sometimes an entirely new fob might be the best solution.
Circuit Board Damage
A key fob can take some physical abuse and is not indestructible. The circuit board, battery and buttons are all susceptible to wear and wear and tear. It is essential to take care of these parts to ensure that your key fob is in good working order.
The easiest thing to check is to ensure that the battery inside your key fob isn't dead. Replace the battery to determine if it resolves your problem. If not, you might need to open the key fob and clean the contact surfaces. This can be a challenge since some key fobs do not have a release mechanism that is easy to open them up, and you can easily harm your device if you attempt to break it. You can purchase a specific tool to open your key fob, however you must always follow the manufacturer's instructions to avoid damaging it.
Another problem that is frequently encountered is a damaged or faulty circuit board in the key fob. This can be caused by many things, including dirt or moisture getting into the battery compartment. Software issues or an unintentional firmware update may be the cause of this. If your key fob has stopped working completely, you should think about having it reprogrammed with an expert locksmith who specializes in this kind of work.
Radio interference is another possibility. key fob repair could happen if are other wireless devices transmitting on the same frequency your key fob, for instance radar detectors, home security systems. If this is the case you need to contact the manufacturer of the other device to ensure that your key fob won't be affected by their signals.
You may also need to replace a switch or other electrical component in your key fob. You can find online guides that will help you fix this yourself. Be careful when doing this, however, because the circuit board in the key fob is tiny and could easily break when handled rough. If you do this yourself, make sure to use a good quality SMT switch and then solder it into place properly.
Buttons that are worn out
Car key fobs are subject to a lot wear and wear and tear. They are prone to being dropped, and they often are frequently being tossed around in your pocket or purse. Sometimes, this can cause buttons to wear out or become stuck. A simple adjustment can solve the issue.
Modern key fobs are fitted with sensors that are able to detect when they've been pressed. They're designed to detect this because they can help decrease the chance of someone stealing your car. If your key fob's buttons aren't responding when pushed it's a sign that they're worn out and require to be replaced.
Key fobs also have a circuit board inside them that sends signals to the car. These signals include commands to unlock and lock your car, as well commands to start the engine. If the internal circuit board is damaged, your key fob may not allow you to unlock or start your engine. Most of the time, this kind of damage is caused by water, blunt force or a scratch on the circuit board.
If you're having to press the buttons more than usual in order to activate them the key fob buttons are becoming worn out. In addition your fob could cease transmitting signals to the car, or have less range than before.
If you're unable to get your key fob to unlock or start your car, you need to contact a locksmith in your area immediately. They'll be able determine whether the key fob itself is damaged or the ignition cylinder has worn out.
Fortunately, most key fobs for cars problems aren't too difficult or serious. Keep a spare key fob in your vehicle always in case you end up being shocked by a malfunctioning one. You'll never be caught in the middle because of an issue with your key or a lost one. If you do lose your spare car key A locksmith can reset it so that it works with the ignition in your car. They'll also be able to fix any internal damage that's occurred on your key fob.
Broken Case
The case of your key fob does more than just protect the battery and buttons. The case also houses the circuitry that does all the electrical magic every time you press the key fob button. The circuit board relays the signal from your keyfob to your car.
Your key fob won't function if the board is damaged. Sometimes, a dead key fob may need to be reprogrammed which is something your local auto locksmith or the dealership can help you with.
Another reason your key fob may not be working is because the batteries are not working. The battery can be replaced at home. You can find a replacement battery at your local auto parts shop or online. These batteries are not just for key fobs.
There are many ways to open a key fob to get inside, based on the kind. You can determine what type of battery your key fob uses by conducting a quick online search. From there, you can purchase an alternative and then simply 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 damage the circuit or buttons in any way. Trying to pry apart a key fob with an edge that is sharp like a screwdriver can cause damage to the case or crack the plastic. Luckily, a replacement case is cheap and you can get a whole fob assembly with the electronic components from eBay or Amazon for less than $40.
If your key fob does not function, make sure you have damaged the circuit board or batteries. If that's not the case, a professional can fix it quickly and inexpensively. If not, it might be time to replace the fob. Make sure you check the warranty on any replacement or used fobs that you purchase on the internet.