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Car Key Repair - How to Fix a Dead Remote

The car remotes are an excellent convenience for drivers. They can unlock doors, open trunks and even start the engine. These remotes are prone to malfunction at the most inconvenient of times.

Before you head to the dealer, consider some quick solutions when your key fob stops functioning. These steps may save you money.

Keyless Entry System





Instead of having to fiddle around with keys in your pocket or purse, you can simply walk up to your car, hit a button on the key fob, then unlock the doors and start the engine. It's a convenient feature that has made the world of driving a car more enjoyable and safer. The keyless entry system, just like any other device, could be damaged by repeated use or by other elements. If you are having issues with yours, you may either go to the dealer or contact an locksmith.

The way a keyless entry system functions is by sending out radio signals and then searching for a corresponding response from the key fob. If the system recognizes the signal, it will trigger to open the doors of the vehicle and activate the onboard computer. Some systems include a second receiver on the trunk of the car, which opens it automatically when you put your foot underneath it.

Each key fob is given a unique digital identification code by the manufacturer. A proprietary technical process called "programming" is used to set the fob up with the car's specific system. This involves turning on the ignition of the car several times in a specific sequence. It may also require pushing or pulling buttons or levers or levers or removing the fuse.

Once the key fob has been programmed into your car's keyless system, it transmits a digital identification code and a function code to tell the car what 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 onboard computer 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 vehicle. This will require an instrument that records the transmission and then transmits it again in the event that the system doesn't want it to. To prevent this from happening, most keyless entry systems use the rolling code method, which ensures that each new transmitter signal received by the vehicle has a different counter than the previous one.

Batteries

A dead battery is the most frequent reason for car remotes not to work. If you have an extra key fob, it's a simple and inexpensive fix. Most fobs are powered with watches-style batteries, which are available at hardware stores or big-box stores for less than $10. You can find the steps to disassemble the key fob on the internet or in your vehicle's manual.

Be cautious not to damage any antennas or circuits in the case once you've removed your battery. They're likely to hold the key fob's program to your car's specific model, and messing with them will make it impossible to program (and likely to fail). If you must move them, do it with care as certain key fobs have fasteners that easily pop open and scatter key fob pieces all over your living room.

The case of the majority of key fobs has a single screwdriver hole. To open it, you can use a pry tool. To begin you must push the tool around the outer edge of the case as you would peel an orange or apple. Do not apply too much pressure, since the case of the fob is usually made of plastic and may break or crack if apply too much force to it.

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

If the issue continues it is possible to try again using your key fob after installing the new battery. If not it, you'll have to determine whether your key fob is suffering from a more complicated issue that requires a professional diagnosis and repair. If this is the case, you might need to have it changed by a dealer or purchase a new key fob entirely.

Buttons

The buttons on your key fob could be tiny but they're loaded with electronic components. It's not surprising that they will malfunction from time to time. If the car key button suddenly stops working, you can generally fix it yourself.

The most common reason a car remote key stops functioning is due to dirt or crud has been lodged between the buttons. To remove remote key fob repair remove the batteries and clean each button with a cotton swab that has been dipped in alcohol rubbing. Be sure to dry them thoroughly before replacing the batteries.

It's also possible that the key fob was damaged by accident, such as being dropped on concrete, or perhaps damaged by something sharp. If this is the case, you can test your key fob's functionality by using a different one.

Another possibility is that the door lock sensor in your vehicle has stopped working. It's a tiny, metal component that's attached to the door lock button on your key fob, and it's not uncommon for this sensor to break following long usage or exposure to harsh weather conditions. Press your key button several times without locking or unlocking your doors. This will reset the sensor.

If all other options fail, you can always test the operation of an extra key by trying to open and close your doors with it. If the spare key does not work, it might be necessary to find an emergency locksmith who can provide auto key repair to get your remote operating again.

If your car key button is working, but it's still not locking or unlocking your vehicle, try reprogramming your computer system. However, keep in mind that if you've used the same key fob for a long time, it will have to be programmed each few months to ensure it is working properly with your vehicle. It's not optimal, but it's better than having to purchase an entirely new remote.