How to Repair Car Key Fobs
Even though we use them numerous times, key fobs are not indestructible. In fact, they can break down in a variety of ways.
The most frequent issue is an unresponsive battery however, other issues could be more serious. Fortunately, many of these can be fixed by a simple DIY fix at home.
Dead Battery
A dead battery is probably the most common reason why a car key fob stops working. Fob batteries can be drained quickly, particularly if they're exposed to extreme temperatures, humidity, or water. Keep an extra battery in your wallet in case you require it.
You can usually tell when the battery in your car key fob is depleted because the light on the LED will stop glowing. It's also possible that your key fob won't function from the same distance as it did in the past. In this instance, the key fob may need to be reprogrammed or replaced completely.
Fortunately replacing the battery in a car key fob is easy. Find out the type of battery that is used. The type of battery should be stamped on the back of your key fob. Google can help you in case you're unsure. Once you have found the battery type and the key fob, you can open it at the junction. You'll need a small flathead screwdriver or your fingernail to pry the two halves apart. Then, you can remove the battery that was removed and replace it with the new one in its place. Place the new battery in such a way that the positive (+) face is facing the buttons on the fob.
Some drivers aren't aware that their fob has died until they lock or unlock their car and the buttons don't work anymore. In some instances this problem can be resolved by reprogramming your fob, but that can be costly and time-consuming. You can also call roadside assistance to find out whether they can start your car and get it back on the road.
If you've tried all the options and your vehicle still won't start, it's the right time to contact an expert. A trained technician can tell whether your car's computer requires reprogramming, or if the fob simply needs a new battery. They can also recommend a reputable auto repair shop to replace your fob's key. In the end, though, sometimes a brand new fob is the best solution.
car key fob repair Damage
The key fob isn't 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 wear and tear. It is crucial to take care of these components to ensure that your key fob is in good condition.
Check that the battery is still functioning on your key fob. If it is replaced, see if that fixes your issue. If this doesn't work, you might need to open the fob and clean the contact surfaces. It can be difficult to open certain key fobs due to the fact that they don't have an easy-release mechanism. You could harm your fob by trying force it apart. You can purchase a specific tool to open your key fob, but it is recommended to follow the instructions of the manufacturer to avoid damaging it.
A damaged or corrupted key fob circuit board is a common problem. This can be due to a number of things like dirt or moisture getting into the battery compartment software problems, or even an accidental firmware update. If your key fob isn't functioning, you might want to consider having it reprogrammed. This can be accomplished by a locksmith that specializes in this type of work.
Radio interference is another possible cause. This could happen when you have other wireless devices that transmit on the same frequency, for example, radar detectors or home security systems. If this is the case, inquire with the other manufacturers of the device to ensure that your key fob isn't affected by their signals.
It's also possible that your key fob may have a bad switch or other electrical component that must be replaced. This is a more difficult fix, but you can find guides online that show you how to do it yourself. It is important to be cautious when doing this, as the circuit boards that are inside the key fob are tiny and easily break when handled rough. If you're doing this yourself, be certain to use a top quality SMT switch and solder it into place properly.
Buttons that are worn out
Car key fobs can get quite a bit of wear and wear and tear. They're susceptible to being dropped, and they often are frequently moving around in your purse or pocket. Sometimes, this jostling can cause the buttons to wear out or snagged. Simple adjustments can resolve the problem.
Most modern key fobs have sensors on them that can detect if they've been pressed. They're designed to detect this because they can help lower the risk of thieves stealing your car. If the buttons on your key fob don't respond when pressed, they are damaged and should be replaced.
Key fobs also have an electronic circuit inside 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 circuit board inside your vehicle is damaged, your key fob may not unlock your vehicle or even start the engine. Typically, this type of damage is caused by water, blunt force, or something scratching the circuit board.
You'll notice that the buttons on your key fob are deteriorating If you're finding yourself pressing them harder than normal in order to get them working. In addition your fob could stop transmitting a signal to the car or have less range than it did prior to.
If you're unable to get your key fob to unlock or start your vehicle, it's crucial to call a locksmith in your area immediately. They'll be able to tell whether the key fob itself is damaged or the ignition cylinder has worn down.
Fortunately, the majority of car key fob problems aren't serious or complicated. The best way to avoid getting caught off guard by an issue with your key fob is to keep an extra in your pocket at all times. You'll never be stranded because of an unresponsive or lost key. If you have lost your spare key, an expert locksmith can rekey it to work with your car's engine. They'll also be able to repair any internal damage that may have occurred on the 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 the button on your key fob. This board transmits the signal from your keyfob to your car.
If this board is damaged or dead your key fob will not be able to operate. Sometimes, a key fob that is dead may need to be reprogrammed which is something that your local auto locksmith or dealership can assist you with.
Another reason why your key fob might not be working is because the batteries are dying. This is a quick fix that you can do at home by replacing the battery. You can purchase an alternative battery at your local auto parts shop or online. These batteries are not only intended for key fobs.
Depending on the type of key fob you have, there are a variety of ways to open it and gain access to the inside. You can determine what kind of battery your key fob uses by conducting a quick online search. From there, you can buy an alternative and then simply pop the old one out, and then the new one in.
The biggest concern when repairing an old car key fob is that you don't want to cause damage to the circuit board or buttons any further. If you attempt to pry off the key fob with an instrument like a screwdriver or any other sharp edge, it can crack the plastic or break the case. Fortunately, a replacement case is cheap and you can get an entire fob with the electronics from eBay or Amazon for less than $40.
If your key fob doesn't work look into whether the batteries are depleted or if the circuit board has been damaged. If this is not the situation, you can get it repaired quickly and easily by an expert. Otherwise, it might be time to invest in a replacement. Be sure to check the warranty on any replacement or used fobs that you purchase on the internet.