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 cease to function at uninviable times.
Before you head to the dealer, you can try a few quick fixes when your key fob stops functioning. These tips could save you money.
Keyless Entry System
Instead of having to fiddle around with keys in your purse or pocket instead, walk up to your car, hit a button on your key fob and then unlock the doors and start the engine. It's a simple function that makes driving a car more relaxing and secure. However, just like any other device, the keyless entry system could break from frequent use or due to other reasons. If you're having problems with yours, you can either visit the dealer or call a locksmith.
A keyless entry system operates by sending radio signals and then searching for a response signal from the key fob. If the system detects the signal, the car's doors are opened and the computer on board is activated. Certain systems include an additional transmitter in the trunk of the car that opens when you move your foot beneath it.
Each key fob is assigned a unique digital identification code by the manufacturer. A specific process of technology called "programming" is used to make sure that the fob is set up with the car's specific system. This usually involves turning the ignition of the car several times in a certain sequence, and could include pulling or pushing different buttons and levers, or removing fuse.
Once the key fob is programmed into the keyless system of your car, it transmits a digital identity code as well as a function-code to instruct the car to (lock or unlock the trunk). The car's receiver verifies the transmitter's identity through an authentication and encryption process. The computer on board will unlock the vehicle and start the engine if it is authenticated.
There are fears that a criminal with a sly approach could intercept the code transmitted between the key fob and the car. This would require a device to record the transmission then transmit it again in the event that the system doesn't anticipate it. To combat this, most keyless entry systems rely on the rolling code method that ensures that every new transmitter signal received by the vehicle has a different counter than the previous one.
Batteries
The most frequent reason for car remotes key fobs not working is an inoperative battery. vehicle key repairs 's a cheap and easy fix if you have a spare key fob on hand to replace the old one with. The majority of fobs are powered by watches-style batteries, which are available at hardware stores or big-box stores for less than $10. A quick search on the internet or in your vehicle's owner's manual will provide directions on how to disassemble your key fob and swap out the battery.
Once you've removed the battery, make sure not to disturb any of the circuits or antennas in the case. If you do this the key fob could become unprogrammable and will not function. If you must move them, do it slowly, as certain key fobs have fasteners that are able to pop open and scatter key fob parts throughout your living space.
The majority of key fobs have a single hole for an screwdriver or similar tool to pop open the case. However, it's a good idea to put your tool on the outside of the case first, just as you were peeling an apple or orange. Don't apply too much pressure, as the case of the key fob is usually made of plastic, and can crack or break with too excessive force.
Be sure to match the size and type of the battery to your key fob when you replace it. Some key fobs have two batteries while others require one. A bad battery could render your remote keyfob useless.
After the new battery has been put in place, try using your key fob once more to see if it fixes your issue. If it doesn't work then you'll have to determine if the fob is experiencing an issue that is more complicated and requires a professional diagnosis. If this is the case, you might need to have it reset by a dealer or you may need to purchase a replacement key fob completely.
Buttons
The buttons on your key fob may be small, but they are packed with electronic components. It's not a surprise that they're likely to fail from time to time. If the button on your car's ignition suddenly stops working, you'll be able to usually fix it yourself.
One of the most frequent reasons why a car key remote stops working is due to dirt or dust that has lodged between the buttons. To get rid of this issue, take off the batteries carefully and scrub each button with the help of a cotton swab which is dipped in rubbing alcohol. Make sure to dry them thoroughly before installing the batteries.
It's possible that the key fob was damaged by accident, such as being dropped on concrete or accidentally scratched by something sharp. If this is the case, you can test the function of your key fob using a different one.
The door lock sensor could have stopped working in your car. This is a tiny metal piece that is attached to the door lock button on your key fob and it's not uncommon for this sensor to break following prolonged usage or exposure to harsh weather conditions. To reset the sensor just press your key button several times without locking or unlocking your doors to reset it.
If all else fails, you could test the functionality of an extra key by trying to unlock and lock your doors using it. If the spare key doesn't work, it could be necessary to find an 24 hour locksmith that can offer automobile key repair in order to make your remote work again.
You can reprogram your computer if the car key fob works however it doesn't lock or unlock the vehicle. However, keep in mind that if you've used the same key fob for some time, it will have to be programmed every few months to ensure it is working properly with your vehicle. It's not optimal, but it's better than buying a new remote.