How to Repair Car Key Fobs
Although we test them numerous times, key fobs are not indestructible. They can break down in different ways.
Other issues can be more grave than a dead battery. Luckily, most of these issues can be solved by making a quick DIY fix at home.
Dead Battery
A dead battery is the most common reason for a key fob that is not working. Fob batteries are prone to draining quickly, particularly if they're exposed to extreme temperatures, humidity or water. It is a good idea to keep an extra battery in your wallet in case.
The LED light will usually stop blinking when the battery in your car key fob is low. It's also possible that the fob will no longer work at the same distance it used to. In this case it might be necessary to reprogram the key fob or replace it altogether.
It is simple to replace the battery in a car keyfob. Find out the type of battery that is used. The type of battery you are using should be engraved on the side of your key fob. If you are not sure it is, doing a quick Google search can help. Once you've identified the kind of battery you want and the key fob, you can open it at the junction. You'll need an small screwdriver with a flat head or your fingernail to pry the two halves apart. Take the old battery out, and replace it with a new one. Insert the new battery so 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 stop working. In some instances this issue can be resolved 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 vehicle and get you back on the road.
If you've tried all three of these methods and your car is still unable to start and you're not sure why, it's time to call an expert. A trained technician can determine if the car's computer system needs reprogramming or if the fob needs an upgrade in battery. They can also recommend a reputable auto shop to replace your fob's keys. In the end, though, sometimes a brand new fob is the most effective solution.
Damaged Circuit Board
A key fob is not indestructible, but it can withstand a lot of physical damage. The circuit board, battery and buttons are all susceptible to wear and tear. It is essential to take care of these components to ensure that your key fob is in good condition.
Check that the battery is still working in your key fob. If it is then replace the battery and determine if this fixes the issue. If not, you may need to open the key fob and clean the contact surfaces. It is sometimes difficult to open some key fobs due to the fact that they do not have an easy-release mechanism. You could cause damage to your fob by trying force it apart. You can buy a special tool to open your key fob, however you should always adhere to the manufacturer's guidelines to avoid damaging it.
Another common problem is a damaged or faulty circuit board inside the key fob. It can be caused by a number of things, such as dirt or moisture getting into the battery compartment, software issues or even an unintentional firmware update. If your key fob isn't working, you may be interested in having it replaced. This can be accomplished by a locksmith who is skilled in this type of work.
Radio interference is also a possibility. It could happen if are other wireless devices that transmit on the same frequency as your key fob, like a radar detectors and 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's signal isn't affected by their signals.
You may also need to replace a switch or an electrical component of your key fob. This is a harder fix, but you can find online guides that will show you how to do it yourself. It's important to be careful when doing this, as the circuit boards in the key fob are tiny and can break easily when handled rough. If you're doing this yourself, be sure to use an SMT switch that is of high-quality and solder the switch in the correct position.
Buttons that are worn out
Car key fobs are susceptible to a lot of wear and wear and tear. They are prone to being dropped and often are frequently being tossed around in your purse or pocket. Sometimes, this can cause the buttons to wear out or snagged. A simple adjustment can solve the problem.
Most modern key fobs have sensors on them that detect when they've been used. They're designed to do this because they can help lower the risk of theft by someone else of your vehicle. If your key fob's buttons aren't responding when you press them it's a sign that they're worn out and require to 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 as commands to start the engine. If the circuit board inside is damaged, then 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 something that scratches the circuit board.
If you have to press the buttons more than usual to activate them If this is the case, then your fob's buttons are getting worn out. Additionally, your fob may cease transmitting signals to the car, or have less range than before.
Contact a locksmith immediately if you are not able to use the key fob to access your vehicle. They'll be able to determine whether the key fob is damaged or if your ignition cylinder has worn down.
Fortunately, the majority of car keyfob problems aren't complicated or serious. The best way to ensure you don't get caught off guard by a malfunctioning key fob is to have an extra key in your possession at all times. You won't be left stranded due to an issue with your key or a lost one. If you have lost your spare key, a professional locksmith can reset it to work with your vehicle's engine. They'll also be able repair any internal damage that has been caused to the key fob.
Broken Case
The case of the key fob is more than protect the buttons and batteries. try what she says houses the circuitry that performs all the electrical magic every time you press a key fob button. The board transmits the signal from your keyfob to your car.
Your key fob won't function if the board is damaged. A key fob that is dead may require reprogramming by a local auto locksmith or dealership.
Another reason your key fob may not be working is because the batteries are dying. This is a simple solution that can be done at home by replacing the battery. You can purchase an alternative battery at the local auto parts store or online. These batteries aren't only for key fobs.
Depending on the type of key fob, there is different ways to open it and get inside. A quick internet search should show you which type of key fob you have and the type of battery it requires. You can then purchase a new replacement and pop the old one out and then put the new one in.
The biggest concern when repairing an old car key fob is that you don't want to harm the circuit board or buttons further. When you try to break a key fob with an edge that is sharp like a screwdriver could cause damage to the case or damage the plastic. Fortunately, a replacement case is inexpensive and you can purchase the entire fob and the electronics from eBay or Amazon for less than $40.
If your key fob won't function, make sure you've damaged the circuit board or the batteries. If this isn't the situation, a professional could repair it for you quickly and cost-effectively. If not, it could be time to replace the fob. Just be sure to check for a warranty on any used or replacement fobs you purchase on the internet.
