How to Repair Car Key Fobs
Even though we test them many a times, key fobs are not impervious to destruction. In fact, they are able to be destroyed in a variety of ways.
While the most common problem is a dead battery but other issues can be much more grave. Most of these issues can be solved with a simple fix at home.
Dead Battery
A dead battery is the most frequent cause of the key fob not functioning. Fob batteries can deplete quickly, especially when they are exposed or cold temperatures, humidity, 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 is also possible that the fob will no longer work at the same distance it used to. In this case the key fob could require reprogramming or replaced altogether.
Fortunately the replacement of a car key fob battery is a simple task. First, find out what kind of battery is used. The type of battery should be embossed in the side of your key fob. Google can help when you're not sure. The key fob can be opened along the seam once you have identified the type of battery. You will need to use a small flathead screwdriver or your fingernail to break the two halves. Then, take out the old battery and put an alternative one in its place. Insert the new battery so that the positive (+) face is facing the buttons on the fob.
Some drivers might not be aware that the fob is dead until they attempt to lock or unlock their vehicle and the buttons do not respond. In some instances this problem can be resolved by reprogramming your fob, but that can be costly and time-consuming. You can also contact roadside assistance to find out whether they can jumpstart your vehicle and get it back on the road.
If you've tried all the options and your car still doesn't start, it's the right time to contact a professional. A certified technician will be able to determine if the car's computer system needs to be reprogrammed or if the fob requires a replacement battery. They will also suggest a reputable auto repair shop to replace your key fob. Sometimes an entirely new fob could be the best option.
Circuit Board Damage
Key fobs can withstand a lot of physical abuse and is not indestructible. The battery, circuit board and buttons will all experience their fair amount of wear and tear over the course of time, so it's important to be vigilant and take care of them to keep your car key fob operating efficiently.
The easiest way to test is to ensure that the battery inside the key fob isn't dying. If it is replaced, determine if this fixes the problem. If this doesn't work, you may need to open the fob and clean the contact surfaces. This can be difficult since some key fobs do not have easy-release mechanisms that allow you to open them up and you may damage your fob if you attempt to break it. You can buy a tool for opening your key fob. However, you must always follow the instructions of the manufacturer to avoid damaging it.
A damaged or damaged key fob circuit board is a frequent issue. This can be due to a number of things, such as dirt or moisture that gets into the battery compartment software, hardware issues, or even an accidental firmware update. If your key fob isn't functioning, you might be interested in getting it replaced. This can be done by a locksmith that specializes in this kind of work.
Radio interference is also a possibility. This can happen if there are other wireless devices transmitting on the same frequency as your key fob, such radar detectors, home security systems. If this is the case, you should consult with other device manufacturers to ensure that your key fob isn't affected by their signals.
You may also need to replace a switch or an electrical component in your key fob. This is a more difficult fix, but you can find guides online that show you how to fix it yourself. You should be careful when doing this, however, because the circuit board in the key fob is tiny and can easily break if handled with care. If you're doing this yourself, make sure to use a high quality SMT switch and then solder it into place properly.
Out Buttons Out Buttons
Car key fobs are subject to a lot wear and tear. They're prone to being dropped and often spend a lot of time being tossed around in your purse or pocket. The constant jostling can cause buttons to wear out or become stuck. When this happens it's possible that a simple adjustment will be all that's needed to make it work again.
Modern key fobs are equipped with sensors that can detect when they've been pressed. This is due to the fact that they decrease the chance of someone else stealing your vehicle. If the buttons on your key fob don't work when you press them, they're worn out and should be replaced.
The circuit board inside the key fob also sends signals to your car. These signals include commands to unlock and lock your car, as well as commands to start your engine. If the circuit board inside your vehicle is damaged, your key fob might not allow you to unlock your car or start the engine. This kind of damage is typically caused by blunt force or water.
You'll notice that the buttons on your key fob are wearing out when you press more than normal to get them to function. In addition, your fob may stop transmitting a signal to the car or it'll have less range than before.
If you're unable to get your key fob to unlock or start your car, you need to find a locksmith in your area immediately. They can tell if the key fob is damaged or your ignition cylinder is worn out.
Fortunately, the majority of key fob issues in cars aren't too serious or complex. The best way to avoid getting caught off guard by a malfunctioning key fob is to have an extra in your pocket at all times. You'll never be stranded due to an unresponsive or lost key. If you do lose your spare car key, a locksmith can help reset it so that it works with the ignition in your car. car key repair shops near me can also repair any internal damage to your key fob.
Broken Case
The case of a key fob does more than just protect the batteries and buttons. The case also houses the circuitry that executes all the electrical magic every time you press a key fob button. The circuit board receives the signal from your key fob, and then transmits it to your car.
The key fob won't work if the board is damaged. A dead key fob may only need to be reprogrammed by a local auto locksmith or dealer.
Batteries could be the cause your key fob's battery not working. This is a simple fix that you can do at home by replacing the battery. The good news is that you can find an alternative battery on the internet or at a local auto parts store, since these batteries are not exclusive to key fobs.
Depending on the kind of key fob, there are various ways to open it and get inside. A quick search on the internet will show you which type of key fob you have and what kind of battery it requires. You can then purchase a new replacement and pop the old one out, and then put the new one into.
The main concern when you repair a broken car key fob is that you don't want to harm the circuit board or buttons any further. Trying to pry apart the fob using an edge that is sharp like screwdrivers can damage the case or even scratch the plastic. A replacement case isn't much and you can purchase the entire fob including the electronic components on eBay or Amazon for under $40.
If your key fob isn't functioning Check to see if the batteries are depleted or whether the circuit board is damaged. If that's not the case, a professional will repair it quickly and inexpensively. If not, it could be time to replace the fob. Make sure you check for a warranty on any replacement or used fobs you purchase online.