Car Key Repair - How to Fix a Dead Remote
Car remotes are an excellent convenience for drivers. They can unlock doors, open trunks and even start the car. These remotes can stop working at the most inconvenient instances.
Before you go to the dealer, consider some quick fixes in case your key fob isn't working. These tips could save you money.
Keyless Entry System
Instead of having to fiddle around with keys in your purse or pocket, you can simply walk to your car, press an icon on the key fob and then unlock the doors and start the engine. It's a simple feature that makes driving a car more enjoyable and secure. 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 encountered issues with your keyless entry system, there are two options: Visit the dealership or contact the local locksmith.
Keyless entry systems work by sending radio signals, and then searching for the response signal from a key fob. If the system detects the signal, the vehicle's doors are not locked and the onboard computer activated. Certain systems include another transmitter located in the trunk of the car that opens when you move a foot under it.
Each key fob comes with a unique digital identification code that is issued by the manufacturer. remote key fob repair near me called "programming" is used to set the fob up to work with the specific car's system. This involves turning on the ignition of the vehicle repeatedly in a certain sequence, and may also require pulling levers or buttons or removing the fuse.
Once a key fob is programmed to your vehicle's keyless entry system it transmits the digital identity code, along with a function code that instructs the car what to do (lock or unlock the trunk, or open the trunk). The car's receiver verifies that the transmitter is who it claims to be using an authentication and encryption procedure. If it is authorized, the onboard computer unlocks vehicle and starts the engine.
A savvy criminal could steal and use the code transmitted between the keyfob's and the vehicle. This will require a special device that records the transmission and then transmits it again when the system doesn't anticipate it. Most keyless entry systems utilize the rolling code method to stop this. This ensures that each new transmission signal received by a car has a counter value that differs from the previous one.
Batteries
A dead battery is the most common reason for the car remote to not function. If you have an extra key fob, it's a simple and inexpensive fix. Fortunately, the majority of fobs have regular watch-style batteries that are sold at big-box stores or hardware retailers for as little as $10. A quick search of the internet or in your vehicle's owner's manual will provide directions on how to take apart your key fob and replace the battery.
Be cautious not to damage any of the circuits or antennas within the case after you have removed the battery. They're likely to be holding the key fob's program to your car's specific model and any disruption to them can cause it to become impossible to program (and likely to fail). If you need to move key fobs, be careful. Certain key fobs might have fasteners that can easily be removed and scatter key fob pieces all over your living space.
Most key fobs have a single hole for an screwdriver or similar tool to pop open the case, but it's a good idea to put your tool on the outside of the case first, just as you would peeling an orange or apple. Do not apply too much pressure, as the case of the fob is usually made of plastic and can break or crack if you apply too much pressure to it.
Make sure you ensure that the size and type of the battery to your key fob when you replace it. Some key fobs come with two batteries while others need one. The wrong battery can render your remote keyfob useless.
After the new battery has been put in place, try using your key fob again to see if it solves the issue. If it doesn't, you'll need to determine whether your key fob is suffering from an issue that's more complex that requires a professional diagnosis and repair. If this is the case, you might need to have it reprogrammed by a dealer, or purchase a replacement key fob altogether.
Buttons
The tiny buttons on your key fob are small, and are packed with delicate electronics. It's not a surprise that they will occasionally fail. The good thing is, when your car's key button isn't working, there's usually something you can do to fix it yourself.
The most frequent reason why a car remote key stops functioning is due to dirt or crud has gotten stuck between the buttons. To remedy this, take out the batteries in a careful manner and scrub each button with a cotton swab that has been dipped into ruby 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 damaged by something sharp. If that's the case, using an alternative key fob to test its functionality may reveal that yours has been damaged and has to be replaced.
Another possibility is that the door lock sensor in your vehicle has stopped working. It's a tiny metal piece that is connected to the key fob's door lock button. It's not unusual for it to break due to weather conditions or extended usage. Press your key button several times without locking or unlocking your doors. This will reset the sensor.
If all else fails, you could always check the functioning of an extra key by trying to lock and unlock your doors with it. If the spare key doesn't work, it may be necessary to locate an emergency locksmith who can provide car key repair to get your remote working again.
If the car key button is working but still not locking or unlocking the vehicle, you can try to re-programme your computer system. However, keep in mind that if you've had the same key fob for a period of time, it will have to be programmed every couple of months to ensure it is working properly with your vehicle. It's not the most ideal solution, but it's better than buying another remote.