Car Key Repair - How to Fix a Dead Remote
Car remotes offer great convenience to drivers. They allow you to unlock doors, gain access to trunks, and even start the engine. However, they may stop working at odd times.
Before you go to the dealer, consider some quick fixes if your key fob stops functioning. These steps could save you money.
Keyless Entry System
You don't need to search for keys in your pockets or purse. Just walk to your car, push the button on the keyfob and the doors will unlock and the engine will begin. It's a practical feature that has made the world of car driving more enjoyable and safer. The keyless entry system, just like any other device, may be damaged by repeated use or by other factors. If you've had issues with your keyless entry system, there are two options: Go to the dealership or contact an emergency locksmith in your area.
Keyless entry systems work by sending radio signals, and then scouring for a response signal from a key fob. If the system detects the signal, the car's doors are opened and the onboard computer is activated. Some systems include a second receiver on the trunk of the car, which will open automatically when you put your foot under it.
Each key fob is equipped with an individual digital identity code that's issued by the manufacturer. The fob is programmed by an exclusive process known as "programming". This involves turning on the ignition of the car several times in a specific sequence, and could require pulling levers or buttons or even removing the fuse.
Once the key fob has been programmed into the keyless system of your car, it transmits a digital identification code and a function code that instruct the car to (lock the trunk, unlock it or open the trunk). The receiver on the car verifies the transmitter's identity through an authentication and encryption process. The computer on board will allow the vehicle to be opened and start the engine if it's authorized.
There are concerns that a criminal with a sly approach could intercept the code transmitted between the key fob and the car. This would require a specific device to record the transmission then retransmit it when the system isn't expecting it. Most keyless entry systems utilize the rolling code method to combat this. car key repair cost ensures that each new transmitter signal received by a vehicle has a counter value that differs from the previous one.
Batteries
The most frequent cause of a car remote key fob not working is a dead battery. It's a simple and inexpensive fix in the event that you have an extra key fob on in your possession to replace the previous one with. The majority of fobs are powered by watch-style batteries that can be purchased at hardware stores or big-box stores for less than $10. You can find directions to disassemble your key fob by searching the web or in your vehicle's manual.
Be careful not to harm any of the circuits or antennas within the case after you have removed the battery. They're likely to hold the key fob's programming to your specific car and tampering with them will make it unprogrammable (and probably not work). If you have to move them, do so with care because some key fobs come with fasteners that can easily open and scatter key fob parts throughout your living space.
Most key fobs have a single hole for a screwdriver or other pry tool to pop open the case, however it's a good idea to use your tool to wedge it around the outside of the case first, as if you were peeling an orange or apple. Do not apply too much pressure, since the case of the key fob is typically made of plastic and may break or crack if apply too excessive pressure to it.
Be sure to match the size and type of the battery to your key fob when you replace it. Certain fobs require two batteries, while others have only one, and the incorrect battery could make your remote key fob useless.
If the problem persists it is possible to try again with your fob's key after installing the new battery. If not it, you'll have to determine if your fob has an issue that is more complex and requires a professional diagnosis and repair. If this is the case, you might require it to be changed by a dealer or purchase a new key fob entirely.
Buttons
The buttons on your key fob could be small, but they are packed with electronics. So it's not too surprising that they're doomed to fail from time time. The good thing is, in the event that your car's keypad fails to function, there's typically something you can do to fix it yourself.
One of the most frequent reasons why a car key remote stops working is because dirt or grit has accumulated between the buttons. To get rid of this, carefully remove both the batteries and scrub each button using a cotton swab that has been coated with rubbing alcohol. Be sure to dry them completely before reinstalling batteries.
It's also possible that the key fob was harmed somehow, perhaps dropped on concrete or unintentionally scratched by something sharp. If this is the scenario, you can test your key fob's functionality by using another one.
Another possibility is that the door sensor for your car's lock has stopped working. It's a tiny metal part that is attached to the key fob's door lock button. It's not common for it to fail due to weather conditions or prolonged use. Press your key button several times without locking or unlocking your doors. This resets the sensor.
If all other options fail, you can always test the operation of a spare key by trying to lock and unlock your doors using it. If the spare key does not work, you may have to contact a locksmith on call 24 hours a day who offers automobile key repair to get your remote working again.
If your car key button is working, but it's still not locking or unlocking your vehicle, you may try to re-programme your computer system. If you've had the same key fob a while, it may require reprogramming every few months to continue to work with your vehicle. It's not an ideal situation, but it's better than having to replace your remote entirely.