Car Key Repair - How to Fix a Dead Remote
The car remotes are a great convenience for drivers. They can unlock doors, open trunks, and even start the car. But, these remotes sometimes stop working at odd times.
If you notice that your key fob not working, you can try a few simple fixes before going to the dealership. These suggestions could save you money.
Keyless Entry System
You don't have to look for keys in your purse or pockets. Just walk up to your car, push the button on the keyfob and the doors will open and the engine will begin. It's a useful feature that has made the world of car driving more comfortable and more secure. But, like all devices that has a keyless entry system, the keyless entry system may break from repeated use or due to other factors. If you've experienced problems with your keyless entry system, there are two options: Go to the dealership or call an emergency locksmith in your area.
A keyless entry system operates by sending radio signals and then searching for the response signal from a key fob. If the system can recognize the signal, it will trigger to unlock the vehicle doors and activate the computer onboard. Certain systems have another transmitter located in the trunk of the car that opens it when you waggle your foot beneath it.
Each key fob is assigned an unique identification code by the manufacturer. online is programmed with a unique process called "programming". This requires turning the ignition of the car repeatedly in a predetermined sequence, and could require pushing or pulling buttons or levers, or even removing the fuse.
Once a key fob has been programmed into the keyless system of your car, it transmits a digital identity code and a function code to tell the car what to (lock, unlock or open the trunk). The receiver on the car checks the authenticity of the transmitter by an authentication and encryption process. If it's authorized, the onboard computer unlocks vehicle and begins the engine.
A clever criminal could intercept and use the code sent between the keyfob and vehicle. This would require a specific device to record the transmission then retransmit it when the system isn't expecting it. To prevent this from happening issue, the majority of keyless entry systems rely on a method called rolling code, which ensures that each new signal from the transmitter received by the vehicle has a different counter than the previous one.
Batteries
A dead battery is the most frequent reason for the car remote to not function. If you have an extra key fob it's a low-cost and simple fix. Fortunately, most fobs utilize regular watch-style batteries that are available at hardware stores or big-box retailers for less than $10. A quick search of the internet or your vehicle's owner manual should provide instructions on how you can disassemble the fob that you have been using and replace the battery.
After you've removed your battery, be careful not to disturb any circuits or antennas inside the case. They're likely to be holding the key fob's programming to your car's specific model, and messing with them will render it impossible to program (and probably not work). If you must move them, do so with care because some key fobs have fasteners that easily pop open and scatter key fob pieces throughout your living space.
The case of a majority of key fobs has one screwdriver hole. To open it, you can make use of a pry tool. However, before you begin by putting the tool around the outer edge of the case as you would when peeling an orange or apple. Don't apply too much pressure since the case of the key fob is generally composed of plastic and is susceptible to breaking or cracking when you apply too excessive force.
Be sure to match the size and type of the battery to your key fob when replacing it. Certain fobs require two batteries, whereas others have just one, and the incorrect battery could make your remote key fob ineffective.
If the problem persists it is possible to try again with your fob's key after installing the new battery. If online fails then you'll be required to determine if your fob is suffering from an issue that is more complicated and requires professional diagnosis. If this is the case, you might require it to be changed by a dealer or you may need to purchase a new key fob entirely.
Buttons
The buttons on your key fob might appear small however they're packed with electronics. So it's not too surprising that they're destined to fail from time time. If key fob repair on your car's ignition suddenly stops working, you'll be able to usually fix it yourself.
One of the main reasons a car key remote doesn't work is because dirt or grit has become lodged between the buttons. To fix this, remove the batteries with care and clean each button using an abrasive that has been dipped into the rubbing alcohol. Be sure to dry the buttons completely before reinstalling them.
It's possible that the key fob was harmed somehow, perhaps dropped on concrete or unintentionally scratched by a sharp object. If this is the case using a different key fob to verify its function could reveal that the one you have simply been damaged and needs to be replaced.
The door lock sensor may have stopped working in your car. It's a tiny metal component attached to the key fob's door lock button. It's not uncommon for it to break due to weather conditions or long use. To reset the sensor just press your key button a few times without locking or unlocking your doors to reset it.
If all else fails, you could always test the operation of a spare key by trying to open and close your doors with it. If the spare key does not work, it may be necessary to find a 24-hour locksmith that offers car key repair to get your remote operating again.
If the car key button does work, and it's still not locking or unlocking the vehicle, you can try to reprogram your computer system. However, keep in mind that if you've had the same key fob for a period of time, it's going to need to be programmed each few months to ensure that it continues to work properly with your vehicle. It's not optimal, but it's better than buying a new remote.