How to Repair Car Key Fobs
Key fobs can be damaged even if we use them a lot. They can actually be destroyed in a variety of ways.
While the most common problem is the battery being dead however, other issues could be much more grave. Luckily, most of them can be resolved by making a quick DIY fix at home.
Dead Battery
A dead battery is probably the most common reason a car key fob stops working. Fob batteries can deplete quickly, particularly if they are exposed or cold temperatures, humidity or water. Keep an extra battery in your wallet in case you require it.
The LED light will usually cease to blink when the battery in the car key fob is running low. The fob might be unable to function from the same distance it was previously working to. In this scenario it could be necessary to re-program your key fob or replace it altogether.
It is simple to replace the car keyfob battery. Find out the kind of battery used. The type should be embossed on the back of the fob. If you're not sure, a quick Google search can help. Open the key fob along the seam after you've identified the type of battery. Use a flathead screwdriver, or even your fingernail, to separate the two halves. Remove the old battery, and replace it with a brand new one. Insert the new battery so that the positive (+) face is facing the buttons on the fob.
Some drivers may not realize the fob is dead until they try to lock or unlock their car and the buttons do not respond. In some instances this issue can be resolved by reprogramming your fob, however, this can be expensive and time-consuming. You can also contact roadside assistance to determine whether they can restart your vehicle and get it back on the road.
If you have tried all three of these methods but your car won't start and you're not sure why, it's time for a professional. A certified technician can determine whether your car's computer system needs to be reprogrammed or if the fob needs a new battery. They may also recommend an auto shop that will replace the key fob. Sometimes, however, a new fob may be the best solution.
Circuit Board Damage
A key fob is not indestructible, but it is able to withstand a lot of physical damage. The circuit board, battery and buttons are all subject to wear and tear. It is essential to take care of these components to ensure your key fob remains in good working order.
The easiest way to test is to ensure that the battery inside the key fob isn't dying. Replace the battery to determine if it resolves the issue. If not, you might need to open the key fob and clean the contact surfaces. It is sometimes difficult to open certain key fobs due to the fact that they don't have an easy release mechanism. car key fob repair can harm the fob by trying to take it apart. You can buy a tool to open your key fob. However, you must always follow the instructions of the manufacturer to avoid damaging it.
Another common problem is a damaged or faulty circuit board on the key fob. This can be due to various factors, 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 working completely, you should think about having it reprogrammed by an expert locksmith who specializes in this type of work.
Radio interference is a different possibility. This could happen if there are other wireless devices operating at the same frequency as your key fob, such a radar detectors and home security systems. If this is the situation you must contact the other device manufacturer to make sure that your key fob won't be affected by their signals.
It's also possible that your key fob has an issue with the switch or another electrical component that should be replaced. This is a more difficult fix, but you can find online guides that will show you how to fix it yourself. You should be careful to be careful, however, since the circuit board that is inside the key fob is tiny and could easily break when handled rough. If you're doing this yourself, make sure to use an SMT switch of good quality and solder the switch in the correct position.
Worn Out Buttons
Car key fobs are susceptible to a lot wear and wear and tear. They are susceptible to being dropped and spend a lot time being jostled in your pocket or purse. This jostling can sometimes cause the buttons to wear down or get stuck. Simple adjustments can resolve the issue.
Most modern key fobs have sensors that tell if they've been pressed. They're made to do this so that they can decrease the chance of theft by someone else of your vehicle. If the buttons on your key fob aren't responding when pushed this is a sign that they're worn-out and need to be replaced.
Key fobs also contain an electronic circuit inside which transmits signals to your car. The signals include unlock and lock commands, as well as commands to start your engine. If the circuit board inside your vehicle is damaged then your key fob may not allow you to unlock your car or start the engine. Generally, 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 to get them to function If this is the case, then your key fob buttons are getting worn out. Additionally, your fob may cease transmitting signals to the car or have less range than it did prior to.
Contact a locksmith right away if you are not able to use your key fob for your car. They can determine if the key fob is damaged or your ignition cylinder is worn out.
Fortunately, most key fobs for cars problems aren't complicated or serious. The best way to avoid being caught off guard by an issue with your key fob is to keep an extra key in your possession at all times. This will ensure that you're never stuck in a bind because of an unreliable 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 on your key fob.
Broken Case
The case of a key fob does more than just protect the buttons and batteries. It also houses the circuit board responsible for performing all the electrical magic when you hit a 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 won't be able to operate. Sometimes, a key fob that is dead will just need to be reprogrammed which is something your local auto locksmith or dealership can help you with.
Batteries may be the cause your key fob's battery not working. The battery can be replaced at your home. The positive side is that you can get an alternative battery online or at your local auto parts shop since the batteries aren't limited to key fobs.
There are many ways to open up a key fob and get inside, based on the kind. A quick internet search should reveal what kind of key fob yours is and the type of battery it requires. You can then purchase a new replacement and pop the old one out, and put the new one into.
The biggest concern when repairing an old car key fob is that you don't want to harm the circuit board or buttons further. If you attempt to pull off the key fob with a screwdriver or other hard edge, it could break the plastic or break the case. A replacement case isn't much and you can buy an entire fob, including the electronics on eBay or Amazon for less than $40.
If your key fob isn't functioning, check to see if the batteries are depleted or if the circuit board has been damaged. If this isn't the case, you can have it repaired quickly and easily by a professional. If not, it may be time to replace the fob. Just be sure to check for a warranty on any replacement or used fobs you buy on the internet.