How to Repair Car Key Fobs
Key fobs are susceptible to damage, even if we use them a lot. They are able to break down in different ways.
While the most common problem is an unresponsive battery but other issues can be much more grave. Fortunately, many of these can be fixed by making a quick DIY fix at home.
Dead Battery
A dead battery is the most frequent cause of a key fob not working. Fob batteries tend to drain quickly, particularly if they are exposed to hot or cold temperatures, humidity, or water. Keep an extra battery in your wallet in case you need it.
The LED light will usually stop glowing when the battery in the car key fob is low. It's also possible that your key fob will no longer work from the same distance as it used to. In this scenario the key fob might need to be programmed again or replaced entirely.
It is simple to replace the battery in a car keyfob. Find out the kind of battery used. The type should be engraved on the side of the fob. If you're unsure, an easy Google search will be helpful. Open the key fob across the seam after you've identified the type of battery. You will need to use small flathead screwdrivers or even your fingernail pry the two halves apart. Then, you can remove the old battery and put an alternative one in its place. Be 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 car and the buttons do not respond. This can be fixed by reprogramming the fob. However, it can be time-consuming and expensive. You can also contact roadside assistance to find out whether they are able to start your vehicle and get it back on the road.
If you've tried both solutions and your vehicle still won't start, it's the right time to speak with a professional. key repair car trained technician can tell whether your car's computer requires changing its programming, or if the fob simply needs an upgrade in battery. They may also recommend an auto repair shop that can replace the key fob. In the end it is not always the case that a new fob is the most effective solution.
Damaged Circuit Board
Key fobs can withstand a lot of physical abuse and is not indestructible. The battery, the circuit board buttons, and other components all suffer their fair amount of wear and tear with time and it's crucial to be vigilant and take care of them to keep your car key fob functioning efficiently.
The easiest way to test is to make sure the battery in your key fob isn't dead. If it is, replace the battery and see if that fixes your issue. If not, you might require opening the key fob and clean the contact surfaces. It isn't easy to open some key fobs since they don't have an easy release mechanism. You may damage your fob by trying break it. You can purchase a specific tool for opening your key fob. However, you must follow the directions of the manufacturer to avoid damaging the.
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 entering the battery compartment. Software issues or even an unintentional firmware update may also cause this. If your key fob isn't functioning completely, you should think about having it reprogrammed by a locksmith that specializes in this type of work.
Radio interference is another possibility. It could happen if you have other wireless devices around that transmit at the same frequency, like radar detectors or home security systems. If this is the case, you should inquire with the other manufacturers of your device to make sure that your key fob isn't affected by their signals.
It's also possible that your key fob has a bad switch or other electrical component that must be replaced. This is a harder fix however, you can find guides online that explain how to do it yourself. It is important to be cautious when doing this, as the circuit boards in your key fob are small and easily break when handled rough. If you're doing this yourself, make sure to make use of an SMT switch of good quality and put the switch in place in a proper manner.
Buttons that are worn out
Car key fobs can get lots of wear and wear and tear. They are more prone to being dropped and spend a lot time being jostled in your pocket or purse. Sometimes, this jostling can cause buttons to wear out or stuck. When this happens, a simple adjustment may be all that's needed to make it work again.
Most modern key fobs have sensors that detect when they've been used. They're made to do this because they can help decrease the chance of theft by someone else of your vehicle. If the buttons on your key fob don't work when pressed, they are damaged and should be replaced.
Key fobs also contain an electronic circuit inside that transmits signals to the car. These signals include commands to unlock and lock your car, as well as instructions to start the engine. If your internal circuit board is damaged, the key fob you have may not unlock your vehicle or even start the engine. Generally, this kind of damage is caused by water, force blunt, or something scratching the circuit board.
If you're forced to press the buttons harder than usual in order to activate them the key fob's 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 unlock your key fob, unlock or start your vehicle, it's crucial to find an emergency locksmith in your area. They can determine if the key fob is damaged or the cylinder in your ignition is worn out.
Fortunately, the majority of car key fob problems aren't serious or complicated. The best way to avoid being taken by surprise by an issue with your key fob is to have an extra key in your possession at all times. You'll never be caught in the middle due to a malfunctioning 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 fix any internal damage that has occurred to the key fob.
Broken Case
The case of the key fob does more than just shield the batteries and buttons. It also houses the circuit board that is responsible for all the electrical magic when you press a button on your key fob. The circuit board receives the signal from your key fob and transmits it to your car.
If the board is damaged or dead the key fob won't be able to function. Sometimes, a dead key fob may need to be reset which is something that your local auto locksmith or the dealership can help you with.
Batteries may be the cause your key fob's battery not working. The battery can be replaced at home. You can purchase a replacement battery at the local auto parts store or online. These batteries aren't only for key fobs.
Depending on the kind of key fob, there are a variety of ways to open it up and access the insides. You can determine the kind of battery your key fob uses by conducting a quick internet search. You can then purchase an alternative and take the old one out, and then put the new one in.
When fixing a damaged key fob, the primary goal is not to harm the circuit or buttons more. If you attempt to remove the fob using a sharp edge, such as a screwdriver could damage the case or even scratch the plastic. A replacement case isn't expensive and you can purchase a complete fob assembly including the electronic components on eBay or Amazon for less than $40.
So, if your key fob isn't functioning look into whether the batteries are dead or if the circuit board is damaged. If this isn't the situation, a professional could repair it for you quickly and cheaply. If not, it may be time to replace the fob. Make sure to verify the warranty of any replacement or used fobs purchased online.