Car Key Repair - How to Fix a Dead Remote
The car remotes are a wonderful convenience for drivers. They can unlock doors, open trunks and even start the car. But, these remotes sometimes stop working at inconvenient times.
If you notice that your key fob is no longer working, try a few quick fixes before going to the dealership. These suggestions could save you money.
Keyless Entry System
There's no need to search for keys in your pockets or purse. Just walk up to your vehicle, press the button on the keyfob and the doors will be opened and the engine will begin. It's a convenient feature that has made the world of car driving 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've had issues with your keyless entry system, there are two options: Go to the dealership or contact the local locksmith.
The way a keyless entry system works is by sending out radio signals and then searching for a response signal from the key fob. If the system can recognize the signal, it triggers to unlock the car doors and also activate the onboard computer. Certain systems have another receiver mounted on the trunk of the car, which opens it automatically when you waggle your foot on it.
Each key fob has a unique digital identity code that's issued by the manufacturer. A proprietary technical process called "programming" is used to set the fob up to work with the specific car's system. This typically involves turning the ignition of the car multiple times in a particular sequence. It could also require pulling or pushing different buttons and levers, or taking out fuse.
Once a key fob has been programmed to the car's keyless entry system, it transmits its digital identity code as well as a function code that instructs the car what to do (lock or unlock the trunk, or open the trunk). The receiver on the car confirms the identity of the transmitter through an authentication and encryption process. If it is authorized, the onboard computer unlocks vehicle and begins the engine.
A clever criminal could intercept and then use the code that is transmitted between the keyfob and vehicle. This would require the use of a device that records the transmission, and then retransmits it later when the system doesn't anticipate it to. To help combat this issue, the majority of keyless entry systems rely on rolling code that ensures that every new signal from the transmitter received by the car has a different counter than the previous one.
Batteries
A dead battery is the main reason for car remotes not to function. If you have an extra key fob it's a cheap and easy fix. Most fobs are powered by watch-style batteries, which can be bought at hardware stores or big-box stores for less than $10. A quick search of the internet or your vehicle's owner's manual will provide directions on how to take apart your key fob and swap out the battery.
Be cautious not to damage any of the circuits or antennas within the case after you've removed your battery. They're likely to be holding the key fob's programming to your particular car and tampering with them will make it unprogrammable (and likely to fail). If you need to move key fobs, be cautious. Certain key fobs could have fasteners that can easily be removed and scatter key fob pieces all over your living space.
The case of a majority of key fobs is equipped with a single screwdriver hole. To open it, you'll need to make use of a pry tool. However, before you begin, wedge the pry tool along the outside edge of the case as you would when peeling an orange or apple. Be careful not to apply too much pressure as the case of the key fob is generally made of plastic, and can crack or break when you apply too much force.
Be sure to ensure that the size and type of battery to the key fob when replacing it. Some key fobs require two batteries, while others have just one. Using the wrong battery can quickly render your remote key fob useless.
After the new battery is in place, try using your key fob for the second time to see if the battery has fixed your problem. If this fails, you will have to determine if the fob is suffering from something more complicated that requires a professional diagnosis. You may need to have the fob reprogrammed at an authorized dealer or purchase a new one.
Buttons
The buttons on your key fob may be tiny but they're loaded with electronic components. It's not surprising that they will malfunction from time to time. The good thing is, in the event that your car's keypad fails to function, there's typically something you can do to fix it yourself.
One of the most frequent reasons why a car key remote doesn't work is due to dirt or dust that has become lodged between the buttons. To clear this up, carefully remove both the batteries and clean each button by using a cotton swab, dipped in ruby alcohol. Make sure to dry the batteries completely before reinstalling them.
It's possible that the key fob was damaged in some way, possibly dropped on concrete or accidentally scratched by something sharp. If key fob repairs is the case using an alternative key fob to verify its function might reveal that it has been damaged and requires to be replaced.
key fob repairs is that the door sensor for your car's lock has stopped working. This is a tiny metal piece that is attached to the door lock button on your key fob and it's not unusual for the sensor to break after prolonged use or exposure to weather conditions. Press your key button a few times without locking or unlocking your doors. This will reset the sensor.
If all other options fail, you can test the functionality of the spare key by attempting to open and close your doors with it. If the spare key does not work, you may need to contact a locksmith on call 24 hours a day who offers automobile key repair to get your remote working again.
You can reprogram your computer if your car key button is working but does not lock or unlock the vehicle. If you've had the same key fob a time, it might require reprogramming every few months in order to continue working with your vehicle. It's not the most ideal solution, but it's better than buying a new remote.