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Car Key Repair - How to Fix a Dead Remote

Car remotes are a wonderful convenience for drivers. They can unlock doors, access trunks and even start the engine. These remotes can stop working at the most inconvenient of instances.

If you find that your key fob is not working, you can try a few quick fixes before going to the dealer. These steps could save you money.

Keyless Entry System

There's no need to search for keys in your purse or pockets. Just walk up to your car, press 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 driving a car key repair more enjoyable and safer. But just like any device it's possible that the keyless entry system can fail due to repeated use or due to other reasons. If you've experienced problems with yours, you have two options: Go to the dealership or call an emergency locksmith in your area.

Keyless entry systems work by sending radio signals, and then scouring for the response signal on a key fob. If the system is able to recognize the signal, it triggers to unlock the car doors and also activate the onboard computer. Certain systems include another transmitter located in the trunk of the car which can be opened when you put a foot under it.

Each key fob is assigned a unique digital identification code by the manufacturer. The fob is programmed by a unique process called "programming". This usually involves turning on the ignition of the vehicle several times in a certain sequence. It could also require pulling or pushing various levers and buttons or taking out fuses.

When a key fob is programmed to your vehicle's keyless entry system it transmits the digital identity code, along with an operation code that tells the car what to do (lock, unlock, or open the trunk). The car key button repair's receiver confirms the identity of the transmitter through an authentication and encryption process. The computer in the car will allow the vehicle to be opened and start the engine if it is authorized.

A savvy criminal could steal and then use the code that is transmitted between the keyfob and the vehicle. This would require the use of an instrument that records the transmission, and then retransmits it in the event that the system doesn't want it to. To prevent this from happening issue, the majority of keyless entry systems rely on the rolling code method that guarantees that each new transmitter signal received by the car has a different counter than the previous one.

Batteries

A dead battery is the main reason for a car remote to not function. It's a cheap and easy fix when you have a spare key fob on hand to replace the old one with. Fortunately, most fobs utilize traditional watch-style batteries which are sold at big-box stores or hardware retailers for $10 or less. A quick search on the internet or in your vehicle's owner manual should provide instructions on how to take apart your key fob and swap out the battery.

After you've removed your battery, be careful not to disturb any of the circuits or antennas in the case. If you do this, the key fob will become unprogrammable and will not work. If you need to move auto key fob repair fobs, take care. Some key fobs may come with fasteners that are able to pop out and scatter key fob pieces all over your living space.

The case of a majority of key fobs has one screwdriver hole. To open it, make use of a pry tool. However, before you begin you must push the tool around the outer edge of the case like you would do when peeling an orange or apple. Do not apply too much pressure as the case of the key fob is usually composed of plastic and is susceptible to breaking or cracking when you apply too the force.

Make sure you match the size and type of battery to the key fob when you replace it. Some key fobs come with two batteries while others only need one. The wrong battery can render your remote keyfob useless.

Once the new battery is in place, try using your key fob for the second time to see if the battery has fixed the issue. If it doesn't work you'll need to determine whether your fob is experiencing an issue that is more complicated and requires a professional diagnosis. You may need to have the key fob reprogrammed at the dealer or purchase a new one.

Buttons

The buttons on your key fob may appear small however they're packed with electronics. It's not surprising that they will occasionally fail. The good thing is, when your car's key button fails to function, there's typically something you can do to fix it yourself.

The most common reason that a car remote stop functioning is due to dirt or crud have lodged between the button. To get rid of this take care to remove both batteries and scrub each button using a cotton swab that has been dipped in alcohol rubbing. Make sure you dry them completely before reinstalling batteries.

It's possible that your key fob is damaged in some way, such as being dropped on concrete or accidentally scratched. If this is the scenario, you can test the functionality of your key fob by using a different one.

The door lock sensor could have stopped working in your car. 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 long usage. Press your key button a few times without locking or unlocking your doors. This resets the sensor.

If nothing else works, you can always test the functionality of a spare key by unlocking and locking your doors with it. If the spare key does not work, it could be necessary to locate a 24-hour locksmith that offers automobile key repair in order to get your remote operating again.

If the car key button does work, and it's still not locking or unlocking the vehicle, try to re-programme your computer system. If you've had the same key fob a time, it might need to be reprogrammed every couple of months to continue working with your vehicle. It's not optimal, but it's better than buying an entirely new remote.