Car Key Repair - How to Fix a Dead Remote
Car remotes are a great convenience for drivers. They can unlock doors, open trunks, and even start the engine. These remotes can stop working at the most inconvenient of moments.
Before you head to the dealer, you can try a few quick fixes in case your key fob isn't working. These steps could save you money.
Keyless Entry System
There's no need to search for keys in your pockets or purse. Simply walk up to your car, push the button on the keyfob, and the doors will be opened and the engine will start. It's a simple function that makes driving a car more comfortable and safe. But, like all devices it's possible that the keyless entry system may fail due to repeated use or because of other reasons. If you've encountered issues with yours, you have two options: Go to the dealership or contact 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 can recognize the signal, it will trigger to unlock the car doors and activate the computer onboard. Some systems include a second receiver on the car's trunk that will open automatically when you waggle your foot on it.
Each key fob is given a unique digital identification code by the manufacturer. The fob is programmed with a proprietary process called "programming". This usually involves turning the ignition of the car multiple times in a particular sequence. It could include pulling or pushing different buttons and levers, or removing fuses.
Once a key fob has been programmed into your car's keyless system it transmits a digital identity code and a function code that instruct the car to (lock or unlock the trunk). The receiver in the car confirms that the transmitter is the person it claims to be by using an authentication and encryption procedure. The onboard computer will allow the vehicle to be opened and start the engine when it is authorized.
A clever criminal could intercept and then use the code that is transmitted between the keyfob and vehicle. This would require the use of an instrument that records the transmission and then transmits it again when the system doesn't anticipate it to. Most keyless entry systems use a rolling code method to stop this. This ensures that every new transmission signal received by a vehicle has a counter value that differs from the previous one.
Batteries
A dead battery is the most frequent reason for the car remote to not work. If you have an extra key fob, it's a simple and inexpensive fix. Most fobs are powered with watch-style batteries, which can be purchased at hardware stores or big-box stores for less than $10. You can find instructions to disassemble your key fob by searching the internet or in your car's manual.
Be careful not to harm any antennas or circuits in the case after you have removed your battery. They're likely to hold the key fob's program to your specific car and tampering with them can cause it to become impossible to program (and probably not work). If you have to move them, do so with care, as some key fobs have fasteners that can easily pop open and scatter key fob parts across your living room.
The majority of key fobs have a single hole for the screwdriver or another pry tool to pop open the case, however it's a good idea use your tool to wedge it around 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 key fob is typically composed of plastic and is susceptible to breaking or cracking when you exert too the force.
When you're ready for replacing the battery, make sure to match its size and style to your key fob. Some key fobs require two batteries, while others only have one. Using the wrong battery can render your remote key fob useless.
If the problem persists it is possible to try again using your fob's key after installing the new battery. If not, you'll need to determine whether your key fob is suffering from a more complicated issue that requires professional diagnosis and repair. If this is the case, you could require it to be reprogrammed by a dealer, or you may need to purchase a replacement key fob completely.
Buttons
The buttons on your key fob could appear small, but they are packed with electronic components. Therefore, it's not surprising that they're likely to fail from time time. If the car key button suddenly ceases to function, you can usually fix it yourself.
One of the most frequent reasons that a car key remote stops working is due to dirt or dust that has become lodged between the buttons. To remedy this, take out the batteries with care and scrub each button with an abrasive that has been dipped into the rubbing alcohol. Be key repair near me to dry the buttons completely before reinstalling them.
It's possible that the key fob has been damaged in some way, possibly dropped on concrete or accidentally damaged by something sharp. If this is the scenario, you can test the function of your key fob using another one.
The door lock sensor may have stopped working in your vehicle. This sensor is a small metal component attached to the key fob's door lock button. It is not unusual for it to break due to weather conditions or prolonged use. Press your key button several times without locking or unlocking your doors. This will reset the sensor.
If all else fails, you can always test the operation of an extra key by trying to unlock and lock your doors with it. If the spare key doesn't work, you may need to contact a locksmith on call 24 hours a day who can repair your car keys to get your remote working again.
If your car's key fob is working, but it's still not locking or unlocking the vehicle, try reprogramming your computer system. But keep in mind that if you've used the same key fob for some time, it's going to need to be programmed every couple of months to ensure that it remains in sync with your vehicle. It's not the most ideal solution, but it's better than having to purchase a new remote.