How to Fix a Key Fob That isn't Working

If your key fob isn't working There are a few simple steps that can be taken to fix it. The first step is to make sure that it's not the backup remote.

If your backup remote cannot unlock and lock the doors of your repair car remote control key, it is most likely that the primary remote isn't functioning. Most problems with car key button repair remote keys result from battery or circuitry problems.

Battery

It is not unusual for the battery in the key fob for cars to get worn out. It is quite simple to replace the battery, however it is essential to ensure that you choose the correct type and you can consult your owner's manual or contact the dealer of the manufacturer to find out the kind of battery you need. It is also essential to check the battery compartment, since batteries that are not working properly can release caustic chemicals that can harm the remote. If changing the battery doesn't fix the problem, there may be other issues that require attention from a professional. If buttons are stuck or broken, for example it might be necessary to take the remote key Repair apart and rework each component. You could also try reprogramming the vehicle to recognize the new key fob.

Buttons

Through frequent use, key fobs can become worn and dirty. This is not atypical however, it can cause buttons to cease functioning or require a hard press for them to work. This can be very frustrating, especially when you are away from home and have to start your car. Fortunately, even worn-out or broken buttons can usually be fixed with a little time and a few items you may already have around the home.

First, verify that the batteries are correctly placed and that the indentation on the back of the button has been filled. Then, carefully remove the remote and examine the circuit board. Examine for signs of rust or other indications that the buttons are worn out or damaged, like missing the conductive paint. Use a Q-tip that has been dipped in alcohol to gently clean any membrane contacts that are worn or have conductive paint missing. Don't rub too hard, as this could erode the conductive paint, and block the button from firing when you press it.

Examine the battery connector's terminals carefully for any loose solder connections. Soldering them back to their original position can restore the button's functionality if this is the situation. The same method can be used to restore functionality to any other loose connections inside the fob.

If any of the rubber buttons located at the front of the keyfob are not working or require being press extremely hard the graphite disks on the back of the button might have worn out and will require replacement. You can do this by rubbing a pencil over the disks. This should bring the button back to life.

If none of these solutions work or you not be able to get the button respond when pressed hard, it could be that the circuitry has failed. This can be fixed with a quick clean and replacing the solder, but it is best to have an extra fob in case this method doesn't work for you.

Circuitry

Whether or not the key fob buttons function the circuit board that is inside the remote could be dirty. A thorough inspection is usually enough to fix this issue. Broken cases and water are the most common causes of dirty boards. A damaged case can allow water and remote key repair other debris to pass through and short circuit the electronics. Water can also get through pins and vias, which are the tiny connectors found on the board.

If you're able to open up your key fob and don't mind making a mess, we can take off the buttons and put new ones in their place. It's also worth looking at the battery terminal connections. They can become extremely dirty and if they're loose the buttons might not work or may even remain in their down position. Soldering the terminals, and putting the button back into place is typically all it takes to restore keys that are not in working condition.

Non-Remote Transponder Chips

Sealed non-remote transponder chips are more durable than the remote fobs that have them but they can be cracked by a hole that is drilled into them or over by a lawnmowers or car door handle. Most of the time non-remote transponder chip malfunctions can be blamed on blowing fuses.

If you're not confident opening the key fob, take the circuit board off and use a multimeter to check that the diode is operating properly. If you're not sure with this, visit your local Oreilly or hardware store and use their RF frequency tester. This will tell you whether the key fob is sending signals.

Programming

Key fobs are not indestructible and are susceptible to being damaged by a variety of factors. They can lose their pairing to the car's receiver because of shock or a low battery, which calls for the reprogramming. A professional auto locksmith, or a dealer in the main, can reprogram your key fob and get it back up and running again. In the event that resetting and fixing your key fob doesn't work, it could be time to replace it completely.