Car Key Repair - How to Fix a Dead Remote
The car remotes are an excellent convenience for drivers. They can unlock doors, access trunks, and even start the engine. But, these remotes sometimes stop working at odd times.
Before you visit the dealer, try some quick solutions in case your key fob isn't working. These tips could save you money.
Keyless Entry System
You don't have to look for keys in your pockets or purse. Simply walk up to remote key fob repair , press the button on the keyfob and the doors will be opened and the engine will start. It's an easy feature that makes driving a car more relaxing and secure. But just like any device it's possible that the keyless entry system could fail due to repeated use or because of other factors. If you're having problems with yours, you may either go to the dealer or contact a locksmith.
The way a keyless entry system operates is by sending out radio signals and then looking for a corresponding response from the key fob. If the system is able to recognize the signal, it triggers to unlock the vehicle doors and activate the computer onboard. Certain systems have another transmitter located in the trunk of the car that opens it when you waggle one foot underneath it.
Each key fob is given an unique identification code by the manufacturer. A proprietary technical process called "programming" is used to configure the fob to work with the specific car's system. This typically involves turning the ignition of the vehicle repeatedly in a specific sequence and may also involve pushing or pulling various buttons and levers or taking out fuses.
When a key fob is programmed to your car's keyless entry system, it transmits its digital identity code as well as a function code that tells the car what to do (lock, unlock or open the trunk). The receiver in the car verifies that the transmitter is who it claims to be through an authentication and encryption process. The computer on board will allow the vehicle to be opened and start the engine if it is authenticated.
There are concerns that a clever criminal could intercept the code transmitted between the key fob and the car. This would require a special device to record the transmission and then retransmit it later when the system isn't expecting it. To help combat this issue, the majority of keyless entry systems use the rolling code method that ensures that every new transmitter signal received by the vehicle has a different counter value than the previous one.
Batteries
The most frequent reason for a car remote key fob not working is the battery is dead. It's a cheap and easy fix in the event that you have a spare key fob on in your possession to replace the previous one with. The majority of fobs are powered by watches-style batteries, which can be purchased at big-box stores or hardware 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 damage any circuits or antennas inside the case after you've removed your battery. If you make a mess of them the key fob could become unprogrammable and may not function. If you have to move the key fobs, be careful. Certain key fobs could have fasteners which can easily open and scatter key fob pieces all over your living space.
Most key fobs come with one hole that allows 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, like you would peeling an orange or apple. Do not apply too much pressure as the case of the key fob is typically made of plastic, and it is prone to break or crack with too the force.
Make sure you ensure that the size and type of battery to the key fob when replacing it. Some key fobs require two batteries, whereas others have only one. The wrong battery can render your key fob remote useless.
If the issue persists then you can try it again with your fob's key after installing the new battery. If it doesn't it, you'll have to determine whether your device has a more complicated issue that requires professional diagnosis and repair. You may need to have the fob reprogrammed at a dealer or buy a new one.
Buttons
The little buttons on your key fob are tiny, and packed with delicate electronics. It's not a surprise that they fail from time-to-time. The good news is that in the event that your car's keypad 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 trapped between the button. To get rid of this, carefully remove both the batteries and scrub each button by using a cotton swab, coated with ruby alcohol. Make sure to dry them thoroughly before replacing the batteries.
It's also possible that the key fob was damaged in some way, possibly dropped on concrete or accidentally scratched by something sharp. If this is the case, using a different key fob to test its functionality may reveal that yours has been damaged and has to be replaced.
The door lock sensor may have stopped working in your vehicle. The sensor is a tiny metal piece that is connected to the key fob's door lock button. It is not common for it to fail due to weather conditions or extended use. To reset the sensor simply press your key fob a few times without locking or unlocking your doors to reset it.
If all other options fail, you can always check the functioning of the spare key by attempting to open and close your doors using it. If the spare key does not work, it may be necessary to find an 24 hour locksmith that can offer automobile key repair in order to get your remote working again.
If your car key button is working, but it's still not locking or unlocking your vehicle, you can try to reprogram your computer system. But keep in mind that if you've had the same key fob for a period of time, it will have to be programmed every few months to ensure that it remains in sync with your vehicle. This isn't the best option, but it's better than having to replace your remote entirely.