How to Repair Car Key Fobs
Key fobs can become damaged even if we use them frequently. In key fob repairs , they are able to break down in a variety of ways.
While the most common issue is the battery being dead however, other issues could be more serious. The majority of problems can be fixed by a quick fix at home.
Dead Battery
A dead battery is the most frequent reason for a key fob that is not working. Fob batteries tend to drain quickly, particularly if they are exposed to extreme heat or humid temperatures or even water. Keep an extra battery in your wallet in case you need it.
The LED light will typically stop blinking when the battery in the car key fob is running low. It is also possible that the fob won't work at the same distance it did in the past. In this case the key fob might need to be reprogrammed or replaced completely.
It is easy to replace the car keyfob battery. First, you need to determine the kind of battery is being used. The type of battery should be engraved on the back of the fob. Google can assist you in case you're unsure. Once you've identified the type of battery you want to use, open the key fob at the seam. Use a flathead screwdriver, or even your fingernail to pry apart the two halves. Remove the old battery and replace it with a brand new one. Then, insert the new battery so that the positive (+) face is facing the buttons on the fob.
Some drivers may not be aware the fob is dead until they try to lock or unlock their vehicle and the buttons aren't responding. This can be corrected by reprogramming the fob. However it could be costly and time-consuming. You can also call roadside assistance to see whether they can jumpstart your car and get it back on the road.
If you've tried all of these options but your car won't start then it's time to call a professional. A qualified technician can determine if your vehicle's computer system requires reprogramming or if the fob needs a new battery. They can also recommend an auto repair shop that can replace the fob that you use to access your car. Sometimes it is possible that a new fob might be the best option.
Circuit Board Damage
A key fob can take some physical abuse and is not impervious to destruction. The battery, the circuit board, and buttons all get their fair share of wear and tear over the course of time and it's crucial to be vigilant and take care of them to keep your car key fob working efficiently.
Make sure that the battery still functioning on your key fob. Replace the battery to see if it solves your issue. If this does not work, you may need to open the fob and clean its contact surfaces. It isn't easy to open certain key fobs because they don't have an easy release mechanism. You could damage the fob by trying to force it apart. You can purchase a specific tool to open your key fob, but you must always follow the manufacturer's instructions to avoid damaging it.
Another issue that is common is a damaged or damaged circuit board on the key fob. This can be caused by various factors, such as dirt or moisture that gets into the battery compartment software problems or even an accidental firmware update. If your key fob isn't functioning completely, you should consider having it reprogrammed by locksmiths who specialize in this type of work.
Radio interference is another possible cause. It could happen if are other wireless devices that transmit at the same frequency as your key fob, for instance a radar detectors and 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.
It's also possible that your key fob has a bad switch or other electrical component that must be replaced. You can find online guides that will guide you through the process of fixing this yourself. Be cautious when doing this, though because the circuit boards in your key fob are tiny and easily break in the event of rough handling. If you're doing this yourself, make sure to use a good quality SMT switch and solder it into place properly.
Worn Out Buttons
Car key fobs can suffer a lot of wear and tear. They are more prone to being dropped and spend a lot of time being jostled in your purse or pocket. The jolting can cause buttons to wear out or become stuck. In this case it's possible that a simple adjustment will be all that's needed to get it working again.
Modern key fobs come with sensors that can detect when they've been press. This is because they reduce the chance of someone else stealing your vehicle. If the buttons on your key fob aren't responding when pushed, that's an indication that they're worn out and require to be replaced.
The circuit board that is in the key fob also sends signals to your car. The signals include commands to unlock and lock and commands to start your engine. If the circuit board within your vehicle is damaged, then your key fob may not unlock or start your engine. This kind of damage is typically caused by blunt force or water.
If you have to press the buttons more than usual to activate them If this is the case, then your key fob's buttons are getting worn out. In addition the fob might cease transmitting signals to the car or it'll have a lower range than it did before.
Contact a locksmith right away if you are not able to use your key fob for your vehicle. They'll be able determine whether the key fob itself is damaged or the ignition cylinder is worn out.
Fortunately, most key fobs for cars issues aren't very complicated or even serious. The best way to ensure you don't get surprised by an unresponsive key fob is to have a spare in your possession at all times. You'll never be stranded because of a malfunctioning or lost key. Of course, if you do happen to lose your spare car key, a locksmith will be able to reset it to ensure it is compatible with the ignition in your car. They'll also be able fix any internal damage that may have occurred on the key fob.
Broken Case
The case for your key fob provides more than just protection for the buttons and battery. The case also houses the circuitry that performs all the electrical magic whenever you press a key fob button. The circuit board receives the signal from your key fob, and then transmits it to your car.
If this board is damaged or dead, your key fob won't be able to function. A dead key fob might only need to be reprogrammed by your local auto locksmith or dealership.
Another reason your key fob might not be functioning is that the batteries are not working. The battery can be replaced at your home. The good thing is that you can locate the replacement battery online or at your 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 up and access the insides. You can determine what kind of battery your key fob is using by conducting a quick online search. From there, you can purchase the replacement and simply take the old one out and the new one in.
When repairing a broken key fob, the main goal is not to harm the circuit or buttons more. 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. A replacement case isn't much and you can find a complete fob assembly including the electronic components on eBay or Amazon for less than $40.
If your key fob doesn't work, check if you've damaged the circuit board or batteries. If this isn't the situation, a professional could repair it for you quickly and cost-effectively. If not, it might be time to replace the fob. Just be sure to check for a warranty on any used or replacement fobs you purchase online.